57306693831 has 32 divisors (see below), whose sum is σ = 79086870720. Its totient is φ = 36882671616.

The previous prime is 57306693823. The next prime is 57306693833. The reversal of 57306693831 is 13839660375.

It is a happy number.

It is not a de Polignac number, because 57306693831 - 2³ = 57306693823 is a prime.

It is a super-2 number, since 2×57306693831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57306693833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8502895 + ... + 8509631.

It is an arithmetic number, because the mean of its divisors is an integer number (2471464710).

Almost surely, 2^57306693831 is an apocalyptic number.

57306693831 is a deficient number, since it is larger than the sum of its proper divisors (21780176889).

57306693831 is a wasteful number, since it uses less digits than its factorization.

57306693831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7363.

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 57306693831 in words is "fifty-seven billion, three hundred six million, six hundred ninety-three thousand, eight hundred thirty-one".