57387221696 has 28 divisors (see below), whose sum is σ = 130146021648. Its totient is φ = 24594523392.

The previous prime is 57387221641. The next prime is 57387221701. The reversal of 57387221696 is 69612278375.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 64047791 + ... + 64048686.

Almost surely, 2^57387221696 is an apocalyptic number.

57387221696 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

57387221696 is an abundant number, since it is smaller than the sum of its proper divisors (72758799952).

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

57387221696 is a wasteful number, since it uses less digits than its factorization.

57387221696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128096496 (or 128096486 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 56.

The spelling of 57387221696 in words is "fifty-seven billion, three hundred eighty-seven million, two hundred twenty-one thousand, six hundred ninety-six".