57428774416 has 40 divisors (see below), whose sum is σ = 119852500824. Its totient is φ = 26500024320.

The previous prime is 57428774411. The next prime is 57428774419. The reversal of 57428774416 is 61447782475.

It can be written as a sum of positive squares in 4 ways, for example, as 1354534416 + 56074240000 = 36804^2 + 236800^2 .

It is a super-2 number, since 2×57428774416² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57428774411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1062936 + ... + 1115656.

Almost surely, 2^57428774416 is an apocalyptic number.

It is an amenable number.

57428774416 is an abundant number, since it is smaller than the sum of its proper divisors (62423726408).

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

57428774416 is a wasteful number, since it uses less digits than its factorization.

57428774416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57979 (or 57973 counting only the distinct ones).

The product of its digits is 10536960, while the sum is 55.

The spelling of 57428774416 in words is "fifty-seven billion, four hundred twenty-eight million, seven hundred seventy-four thousand, four hundred sixteen".