57507438771 has 12 divisors (see below), whose sum is σ = 84998075448. Its totient is φ = 37446704064.

The previous prime is 57507438743. The next prime is 57507438787. The reversal of 57507438771 is 17783470575.

57507438771 is a `hidden beast` number, since 57 + 507 + 4 + 3 + 87 + 7 + 1 = 666.

It is not a de Polignac number, because 57507438771 - 2⁶ = 57507438707 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (57507438671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74298630 + ... + 74299403.

It is an arithmetic number, because the mean of its divisors is an integer number (7083172954).

Almost surely, 2^57507438771 is an apocalyptic number.

57507438771 is a deficient number, since it is larger than the sum of its proper divisors (27490636677).

57507438771 is a wasteful number, since it uses less digits than its factorization.

57507438771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148598082 (or 148598079 counting only the distinct ones).

The product of its (nonzero) digits is 5762400, while the sum is 54.

The spelling of 57507438771 in words is "fifty-seven billion, five hundred seven million, four hundred thirty-eight thousand, seven hundred seventy-one".