57631215831 has 16 divisors (see below), whose sum is σ = 88400583168. Its totient is φ = 32714028000.

The previous prime is 57631215809. The next prime is 57631215841. The reversal of 57631215831 is 13851213675.

It is not a de Polignac number, because 57631215831 - 2¹⁰ = 57631214807 is a prime.

It is a super-2 number, since 2×57631215831² (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 (57631215841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9084060 + ... + 9090401.

It is an arithmetic number, because the mean of its divisors is an integer number (5525036448).

Almost surely, 2^57631215831 is an apocalyptic number.

57631215831 is a deficient number, since it is larger than the sum of its proper divisors (30769367337).

57631215831 is a wasteful number, since it uses less digits than its factorization.

57631215831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18174622.

The product of its digits is 151200, while the sum is 42.

The spelling of 57631215831 in words is "fifty-seven billion, six hundred thirty-one million, two hundred fifteen thousand, eight hundred thirty-one".