Maximum integer in Javascript

In Javascript, numbers are 64 bit floating point values. The largest integer (magnitude) is 2⁵³, or Math.pow(2,53), or 9007199254740992.

However, the bitwise operators and shift operators supports only up to 32 bit signed integer,  2³¹-1, or Math.pow(2,31)-1, or 2147483647.

Note: the maximum 32 bit unsigned integer,  2³²-1, or Math.pow(2,32)-1, or 4294967295, can be used in arithmetic calculations but not bitwise operations.

see also

• Discussion at stackoverflow