12637740631 has 2 divisors, whose sum is σ = 12637740632. Its totient is φ = 12637740630.

The previous prime is 12637740623. The next prime is 12637740659. The reversal of 12637740631 is 13604773621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12637740631 - 2³ = 12637740623 is a prime.

It is a super-2 number, since 2×12637740631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12637740671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6318870315 + 6318870316.

It is an arithmetic number, because the mean of its divisors is an integer number (6318870316).

Almost surely, 2^12637740631 is an apocalyptic number.

12637740631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12637740631 is an equidigital number, since it uses as much as digits as its factorization.

12637740631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 12637740631 in words is "twelve billion, six hundred thirty-seven million, seven hundred forty thousand, six hundred thirty-one".