315257252412617 has 4 divisors (see below), whose sum is σ = 319697495404416. Its totient is φ = 310817009420820.

The previous prime is 315257252412607. The next prime is 315257252412649. The reversal of 315257252412617 is 716214252752513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315257252412617 - 2¹² = 315257252408521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315257252412607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2220121495793 + ... + 2220121495934.

It is an arithmetic number, because the mean of its divisors is an integer number (79924373851104).

Almost surely, 2^{315257252412617} is an apocalyptic number.

It is an amenable number.

315257252412617 is a deficient number, since it is larger than the sum of its proper divisors (4440242991799).

315257252412617 is an equidigital number, since it uses as much as digits as its factorization.

315257252412617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440242991798.

The product of its digits is 7056000, while the sum is 53.

The spelling of 315257252412617 in words is "three hundred fifteen trillion, two hundred fifty-seven billion, two hundred fifty-two million, four hundred twelve thousand, six hundred seventeen".