12637395697 has 2 divisors, whose sum is σ = 12637395698. Its totient is φ = 12637395696.

The previous prime is 12637395679. The next prime is 12637395703. The reversal of 12637395697 is 79659373621.

Together with previous prime (12637395679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12161457841 + 475937856 = 110279^2 + 21816^2 .

It is a cyclic number.

It is not a de Polignac number, because 12637395697 - 2²³ = 12629007089 is a prime.

It is not a weakly prime, because it can be changed into another prime (12637395097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6318697848 + 6318697849.

It is an arithmetic number, because the mean of its divisors is an integer number (6318697849).

Almost surely, 2^12637395697 is an apocalyptic number.

It is an amenable number.

12637395697 is a deficient number, since it is larger than the sum of its proper divisors (1).

12637395697 is an equidigital number, since it uses as much as digits as its factorization.

12637395697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12859560, while the sum is 58.

The spelling of 12637395697 in words is "twelve billion, six hundred thirty-seven million, three hundred ninety-five thousand, six hundred ninety-seven".