312560774917 has 2 divisors, whose sum is σ = 312560774918. Its totient is φ = 312560774916.

The previous prime is 312560774887. The next prime is 312560774921. The reversal of 312560774917 is 719477065213.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312560383041 + 391876 = 559071^2 + 626^2 .

It is a cyclic number.

It is not a de Polignac number, because 312560774917 - 2²³ = 312552386309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312560774717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156280387458 + 156280387459.

It is an arithmetic number, because the mean of its divisors is an integer number (156280387459).

Almost surely, 2^312560774917 is an apocalyptic number.

It is an amenable number.

312560774917 is a deficient number, since it is larger than the sum of its proper divisors (1).

312560774917 is an equidigital number, since it uses as much as digits as its factorization.

312560774917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2222640, while the sum is 52.

The spelling of 312560774917 in words is "three hundred twelve billion, five hundred sixty million, seven hundred seventy-four thousand, nine hundred seventeen".