12492765715957 has 2 divisors, whose sum is σ = 12492765715958. Its totient is φ = 12492765715956.

The previous prime is 12492765715949. The next prime is 12492765716029. The reversal of 12492765715957 is 75951756729421.

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., 12095551913956 + 397213802001 = 3477866^2 + 630249^2 .

It is a cyclic number.

It is not a de Polignac number, because 12492765715957 - 2³ = 12492765715949 is a prime.

It is a super-2 number, since 2×12492765715957² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12492765415957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6246382857978 + 6246382857979.

It is an arithmetic number, because the mean of its divisors is an integer number (6246382857979).

Almost surely, 2^{12492765715957} is an apocalyptic number.

It is an amenable number.

12492765715957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12492765715957 is an equidigital number, since it uses as much as digits as its factorization.

12492765715957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 333396000, while the sum is 70.

The spelling of 12492765715957 in words is "twelve trillion, four hundred ninety-two billion, seven hundred sixty-five million, seven hundred fifteen thousand, nine hundred fifty-seven".