57778432044 has 24 divisors (see below), whose sum is σ = 134820935088. Its totient is φ = 19258821120.

The previous prime is 57778432039. The next prime is 57778432051. The reversal of 57778432044 is 44023487775.

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, 396484 + ... + 522260.

It is an arithmetic number, because the mean of its divisors is an integer number (5617538962).

Almost surely, 2^57778432044 is an apocalyptic number.

It is an amenable number.

57778432044 is an abundant number, since it is smaller than the sum of its proper divisors (77042503044).

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

57778432044 is a wasteful number, since it uses less digits than its factorization.

57778432044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164065 (or 164063 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 51.

The spelling of 57778432044 in words is "fifty-seven billion, seven hundred seventy-eight million, four hundred thirty-two thousand, forty-four".