57424431624 has 128 divisors (see below), whose sum is σ = 168424704000. Its totient is φ = 16308344640.

The previous prime is 57424431611. The next prime is 57424431653. The reversal of 57424431624 is 42613442475.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1353859 + ... + 1395629.

It is an arithmetic number, because the mean of its divisors is an integer number (1315818000).

Almost surely, 2^57424431624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57424431624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84212352000).

57424431624 is an abundant number, since it is smaller than the sum of its proper divisors (111000272376).

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

57424431624 is a wasteful number, since it uses less digits than its factorization.

57424431624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41968 (or 41950 counting only the distinct ones).

The product of its digits is 645120, while the sum is 42.

The spelling of 57424431624 in words is "fifty-seven billion, four hundred twenty-four million, four hundred thirty-one thousand, six hundred twenty-four".