diff --git a/adminer/create.inc.php b/adminer/create.inc.php
index d813dbb6..7af80dd8 100644
--- a/adminer/create.inc.php
+++ b/adminer/create.inc.php
@@ -110,7 +110,7 @@ if ($_POST && !process_fields($row["fields"]) && !$error) {
 			($row["Comment"] != $table_status["Comment"] ? $row["Comment"] : null),
 			($row["Engine"] && $row["Engine"] != $table_status["Engine"] ? $row["Engine"] : ""),
 			($row["Collation"] && $row["Collation"] != $table_status["Collation"] ? $row["Collation"] : ""),
-			($row["Auto_increment"] != "" ? +$row["Auto_increment"] : ""),
+			($row["Auto_increment"] != "" ? number($row["Auto_increment"]) : ""),
 			$partitioning
 		));
 	}
diff --git a/adminer/drivers/mssql.inc.php b/adminer/drivers/mssql.inc.php
index 423855e0..8a8f6206 100644
--- a/adminer/drivers/mssql.inc.php
+++ b/adminer/drivers/mssql.inc.php
@@ -430,7 +430,7 @@ WHERE OBJECT_NAME(i.object_id) = " . q($table)
 	}
 
 	function auto_increment() {
-		return " IDENTITY" . ($_POST["Auto_increment"] != "" ? "(" . (+$_POST["Auto_increment"]) . ",1)" : "") . " PRIMARY KEY";
+		return " IDENTITY" . ($_POST["Auto_increment"] != "" ? "(" . number($_POST["Auto_increment"]) . ",1)" : "") . " PRIMARY KEY";
 	}
 
 	function alter_table($table, $name, $fields, $foreign, $comment, $engine, $collation, $auto_increment, $partitioning) {
diff --git a/adminer/drivers/mysql.inc.php b/adminer/drivers/mysql.inc.php
index 9add20c8..a16c02a8 100644
--- a/adminer/drivers/mysql.inc.php
+++ b/adminer/drivers/mysql.inc.php
@@ -649,7 +649,7 @@ if (!defined("DRIVER")) {
 	* @param string
 	* @param string
 	* @param string
-	* @param int
+	* @param string number
 	* @param string
 	* @return bool
 	*/
diff --git a/adminer/include/functions.inc.php b/adminer/include/functions.inc.php
index 05ff0936..384534b3 100644
--- a/adminer/include/functions.inc.php
+++ b/adminer/include/functions.inc.php
@@ -33,6 +33,14 @@ function escape_string($val) {
 	return substr(q($val), 1, -1);
 }
 
+/** Remove non-digits from a string
+* @param string
+* @return string
+*/
+function number($val) {
+  return preg_replace('~[^0-9]+~', '', $val);
+}
+
 /** Disable magic_quotes_gpc
 * @param array e.g. (&$_GET, &$_POST, &$_COOKIE)
 * @param bool whether to leave values as is
diff --git a/adminer/processlist.inc.php b/adminer/processlist.inc.php
index d6e660a9..ce60bcfc 100644
--- a/adminer/processlist.inc.php
+++ b/adminer/processlist.inc.php
@@ -2,7 +2,7 @@
 if (support("kill") && $_POST && !$error) {
 	$killed = 0;
 	foreach ((array) $_POST["kill"] as $val) {
-		if (queries("KILL " . (+$val))) {
+		if (queries("KILL " . number($val))) {
 			$killed++;
 		}
 	}
diff --git a/adminer/script.inc.php b/adminer/script.inc.php
index 617ac114..62df6eae 100644
--- a/adminer/script.inc.php
+++ b/adminer/script.inc.php
@@ -33,7 +33,7 @@ if ($_GET["script"] == "db") {
 	json_row("");
 
 } elseif ($_GET["script"] == "kill") {
-	$connection->query("KILL " . (+$_POST["kill"]));
+	$connection->query("KILL " . number($_POST["kill"]));
 
 } else { // connect
 	foreach (count_tables($adminer->databases()) as $db => $val) {
diff --git a/changes.txt b/changes.txt
index fce223da..37ac5e9e 100644
--- a/changes.txt
+++ b/changes.txt
@@ -9,6 +9,7 @@ Send 403 for auth error
 Report offline and other AJAX errors (bug #419)
 Don't alter table comment if not changed
 Add links to documentation on table status page
+Fix handling of 64 bit numbers in auto_increment
 MySQL: Use utf8mb4 if available
 MySQL: Support foreign keys in NDB storage
 PostgreSQL: Materialized views
diff --git a/editor/script.inc.php b/editor/script.inc.php
index f7b1991b..db57165c 100644
--- a/editor/script.inc.php
+++ b/editor/script.inc.php
@@ -1,6 +1,6 @@
 <?php
 if ($_GET["script"] == "kill") {
-	$connection->query("KILL " . (+$_POST["kill"]));
+	$connection->query("KILL " . number($_POST["kill"]));
 
 } elseif (list($table, $id, $name) = $adminer->_foreignColumn(column_foreign_keys($_GET["source"]), $_GET["field"])) {
 	$limit = 11;