57213647964 has 72 divisors (see below), whose sum is σ = 157804937472. Its totient is φ = 17333736480.

The previous prime is 57213647941. The next prime is 57213647971. The reversal of 57213647964 is 46974631275.

57213647964 is a `hidden beast` number, since 572 + 1 + 3 + 6 + 4 + 7 + 9 + 64 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 57213647964.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2237757 + ... + 2263179.

Almost surely, 2^57213647964 is an apocalyptic number.

It is an amenable number.

57213647964 is an abundant number, since it is smaller than the sum of its proper divisors (100591289508).

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

57213647964 is a wasteful number, since it uses less digits than its factorization.

57213647964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31127 (or 31122 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The spelling of 57213647964 in words is "fifty-seven billion, two hundred thirteen million, six hundred forty-seven thousand, nine hundred sixty-four".