315250975769 has 2 divisors, whose sum is σ = 315250975770. Its totient is φ = 315250975768.

The previous prime is 315250975757. The next prime is 315250975777. The reversal of 315250975769 is 967579052513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253903116544 + 61347859225 = 503888^2 + 247685^2 .

It is a cyclic number.

It is not a de Polignac number, because 315250975769 - 2⁸ = 315250975513 is a prime.

It is a super-2 number, since 2×315250975769² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (315250975069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157625487884 + 157625487885.

It is an arithmetic number, because the mean of its divisors is an integer number (157625487885).

Almost surely, 2^315250975769 is an apocalyptic number.

It is an amenable number.

315250975769 is a deficient number, since it is larger than the sum of its proper divisors (1).

315250975769 is an equidigital number, since it uses as much as digits as its factorization.

315250975769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17860500, while the sum is 59.

The spelling of 315250975769 in words is "three hundred fifteen billion, two hundred fifty million, nine hundred seventy-five thousand, seven hundred sixty-nine".