493164331631 has 2 divisors, whose sum is σ = 493164331632. Its totient is φ = 493164331630.

The previous prime is 493164331619. The next prime is 493164331651. The reversal of 493164331631 is 136133461394.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493164331631 is a prime.

It is a super-2 number, since 2×493164331631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493164331651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246582165815 + 246582165816.

It is an arithmetic number, because the mean of its divisors is an integer number (246582165816).

Almost surely, 2^493164331631 is an apocalyptic number.

493164331631 is a deficient number, since it is larger than the sum of its proper divisors (1).

493164331631 is an equidigital number, since it uses as much as digits as its factorization.

493164331631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 44.

The spelling of 493164331631 in words is "four hundred ninety-three billion, one hundred sixty-four million, three hundred thirty-one thousand, six hundred thirty-one".