12590717957 has 2 divisors, whose sum is σ = 12590717958. Its totient is φ = 12590717956.

The previous prime is 12590717947. The next prime is 12590718017. The reversal of 12590717957 is 75971709521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11618899681 + 971818276 = 107791^2 + 31174^2 .

It is a cyclic number.

It is not a de Polignac number, because 12590717957 - 2²⁶ = 12523609093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12590717899 and 12590717908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12590717917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6295358978 + 6295358979.

It is an arithmetic number, because the mean of its divisors is an integer number (6295358979).

Almost surely, 2^12590717957 is an apocalyptic number.

It is an amenable number.

12590717957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12590717957 is an equidigital number, since it uses as much as digits as its factorization.

12590717957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1389150, while the sum is 53.

The spelling of 12590717957 in words is "twelve billion, five hundred ninety million, seven hundred seventeen thousand, nine hundred fifty-seven".