57281679631 has 24 divisors (see below), whose sum is σ = 63332312400. Its totient is φ = 51769132800.

The previous prime is 57281679619. The next prime is 57281679683. The reversal of 57281679631 is 13697618275.

It is a de Polignac number, because none of the positive numbers 2^k-57281679631 is a prime.

It is a super-2 number, since 2×57281679631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57281677631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26904375 + ... + 26906503.

It is an arithmetic number, because the mean of its divisors is an integer number (2638846350).

Almost surely, 2^57281679631 is an apocalyptic number.

57281679631 is a deficient number, since it is larger than the sum of its proper divisors (6050632769).

57281679631 is a wasteful number, since it uses less digits than its factorization.

57281679631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351 (or 3340 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 55.

The spelling of 57281679631 in words is "fifty-seven billion, two hundred eighty-one million, six hundred seventy-nine thousand, six hundred thirty-one".