57136798012 has 54 divisors (see below), whose sum is σ = 115358899992. Its totient is φ = 24256816848.

The previous prime is 57136798009. The next prime is 57136798049. The reversal of 57136798012 is 21089763175.

It is a happy number.

It is a super-2 number, since 2×57136798012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 251703843 + ... + 251704069.

Almost surely, 2^57136798012 is an apocalyptic number.

It is an amenable number.

57136798012 is an abundant number, since it is smaller than the sum of its proper divisors (58222101980).

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

57136798012 is an equidigital number, since it uses as much as digits as its factorization.

57136798012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 57136798012 in words is "fifty-seven billion, one hundred thirty-six million, seven hundred ninety-eight thousand, twelve".