57640274560 has 64 divisors (see below), whose sum is σ = 150323234400. Its totient is φ = 20960097280.

The previous prime is 57640274507. The next prime is 57640274581. The reversal of 57640274560 is 6547204675.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 57640274560.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4086730 + ... + 4100809.

Almost surely, 2^57640274560 is an apocalyptic number.

It is an amenable number.

57640274560 is an abundant number, since it is smaller than the sum of its proper divisors (92682959840).

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

57640274560 is a wasteful number, since it uses less digits than its factorization.

57640274560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8187569 (or 8187557 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 57640274560 in words is "fifty-seven billion, six hundred forty million, two hundred seventy-four thousand, five hundred sixty".