57315987128 has 16 divisors (see below), whose sum is σ = 107520524280. Its totient is φ = 28643847328.

The previous prime is 57315987083. The next prime is 57315987137. The reversal of 57315987128 is 82178951375.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1751051 + ... + 1783482.

Almost surely, 2^57315987128 is an apocalyptic number.

It is an amenable number.

57315987128 is a deficient number, since it is larger than the sum of its proper divisors (50204537152).

57315987128 is a wasteful number, since it uses less digits than its factorization.

57315987128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536566 (or 3536562 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 56.

The spelling of 57315987128 in words is "fifty-seven billion, three hundred fifteen million, nine hundred eighty-seven thousand, one hundred twenty-eight".