57974773638 has 32 divisors (see below), whose sum is σ = 121101707520. Its totient is φ = 18483936480.

The previous prime is 57974773621. The next prime is 57974773691. The reversal of 57974773638 is 83637747975.

It is a super-2 number, since 2×57974773638² (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 15 ways as a sum of consecutive naturals, for example, 2200018 + ... + 2226213.

It is an arithmetic number, because the mean of its divisors is an integer number (3784428360).

Almost surely, 2^57974773638 is an apocalyptic number.

57974773638 is an abundant number, since it is smaller than the sum of its proper divisors (63126933882).

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

57974773638 is a wasteful number, since it uses less digits than its factorization.

57974773638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4426332.

The product of its digits is 186701760, while the sum is 66.

The spelling of 57974773638 in words is "fifty-seven billion, nine hundred seventy-four million, seven hundred seventy-three thousand, six hundred thirty-eight".