57546665838 has 32 divisors (see below), whose sum is σ = 127991577600. Its totient is φ = 19165707288.

The previous prime is 57546665837. The next prime is 57546665893. The reversal of 57546665838 is 83856664575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57546665837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395358 + ... + 520961.

It is an arithmetic number, because the mean of its divisors is an integer number (3999736800).

Almost surely, 2^57546665838 is an apocalyptic number.

57546665838 is an abundant number, since it is smaller than the sum of its proper divisors (70444911762).

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

57546665838 is a wasteful number, since it uses less digits than its factorization.

57546665838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917493 (or 917487 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 63.

The spelling of 57546665838 in words is "fifty-seven billion, five hundred forty-six million, six hundred sixty-five thousand, eight hundred thirty-eight".