2657396136 has 64 divisors (see below), whose sum is σ = 6865620480. Its totient is φ = 856247040.

The previous prime is 2657396117. The next prime is 2657396141. The reversal of 2657396136 is 6316937562.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 948690 + ... + 951486.

It is an arithmetic number, because the mean of its divisors is an integer number (107275320).

Almost surely, 2^2657396136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2657396136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3432810240).

2657396136 is an abundant number, since it is smaller than the sum of its proper divisors (4208224344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2657396136 is a wasteful number, since it uses less digits than its factorization.

2657396136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4114 (or 4110 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 48.

The square root of 2657396136 is about 51549.9382734839. The cubic root of 2657396136 is about 1385.1137261894.

The spelling of 2657396136 in words is "two billion, six hundred fifty-seven million, three hundred ninety-six thousand, one hundred thirty-six".