57089978568 has 96 divisors (see below), whose sum is σ = 179604010560. Its totient is φ = 16044013440.

The previous prime is 57089978531. The next prime is 57089978591. The reversal of 57089978568 is 86587998075.

57089978568 is a `hidden beast` number, since 57 + 0 + 8 + 9 + 9 + 7 + 8 + 568 = 666.

57089978568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 57089978496 and 57089978505.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 897730 + ... + 959217.

It is an arithmetic number, because the mean of its divisors is an integer number (1870875110).

Almost surely, 2^57089978568 is an apocalyptic number.

It is an amenable number.

57089978568 is an abundant number, since it is smaller than the sum of its proper divisors (122514031992).

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

57089978568 is a wasteful number, since it uses less digits than its factorization.

57089978568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857027 (or 1857020 counting only the distinct ones).

The product of its (nonzero) digits is 304819200, while the sum is 72.

The spelling of 57089978568 in words is "fifty-seven billion, eighty-nine million, nine hundred seventy-eight thousand, five hundred sixty-eight".