57973947631 has 2 divisors, whose sum is σ = 57973947632. Its totient is φ = 57973947630.

The previous prime is 57973947623. The next prime is 57973947671. The reversal of 57973947631 is 13674937975.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57973947631 - 2³ = 57973947623 is a prime.

It is a super-2 number, since 2×57973947631² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57973947631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57973947601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28986973815 + 28986973816.

It is an arithmetic number, because the mean of its divisors is an integer number (28986973816).

Almost surely, 2^57973947631 is an apocalyptic number.

57973947631 is a deficient number, since it is larger than the sum of its proper divisors (1).

57973947631 is an equidigital number, since it uses as much as digits as its factorization.

57973947631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30005640, while the sum is 61.

The spelling of 57973947631 in words is "fifty-seven billion, nine hundred seventy-three million, nine hundred forty-seven thousand, six hundred thirty-one".