57977665232 has 20 divisors (see below), whose sum is σ = 118939475556. Its totient is φ = 27283607040.

The previous prime is 57977665201. The next prime is 57977665247. The reversal of 57977665232 is 23256677975.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40311002176 + 17666663056 = 200776^2 + 132916^2 .

It is a super-2 number, since 2×57977665232² (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 3 ways as a sum of consecutive naturals, for example, 106576319 + ... + 106576862.

Almost surely, 2^57977665232 is an apocalyptic number.

It is an amenable number.

57977665232 is an abundant number, since it is smaller than the sum of its proper divisors (60961810324).

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

57977665232 is a wasteful number, since it uses less digits than its factorization.

57977665232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213153206 (or 213153200 counting only the distinct ones).

The product of its digits is 33339600, while the sum is 59.

The spelling of 57977665232 in words is "fifty-seven billion, nine hundred seventy-seven million, six hundred sixty-five thousand, two hundred thirty-two".