315631975502017 has 2 divisors, whose sum is σ = 315631975502018. Its totient is φ = 315631975502016.

The previous prime is 315631975501987. The next prime is 315631975502083. The reversal of 315631975502017 is 710205579136513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224756345999376 + 90875629502641 = 14991876^2 + 9532871^2 .

It is a cyclic number.

It is not a de Polignac number, because 315631975502017 - 2³⁵ = 315597615763649 is a prime.

It is a super-3 number, since 3×315631975502017³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (315631975502717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157815987751008 + 157815987751009.

It is an arithmetic number, because the mean of its divisors is an integer number (157815987751009).

Almost surely, 2^{315631975502017} is an apocalyptic number.

It is an amenable number.

315631975502017 is a deficient number, since it is larger than the sum of its proper divisors (1).

315631975502017 is an equidigital number, since it uses as much as digits as its factorization.

315631975502017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5953500, while the sum is 55.

The spelling of 315631975502017 in words is "three hundred fifteen trillion, six hundred thirty-one billion, nine hundred seventy-five million, five hundred two thousand, seventeen".