317506457257 has 16 divisors (see below), whose sum is σ = 356548211712. Its totient is φ = 280241352720.

The previous prime is 317506457221. The next prime is 317506457267. The reversal of 317506457257 is 752754605713.

It is a cyclic number.

It is not a de Polignac number, because 317506457257 - 2¹¹ = 317506455209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (317506457267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1930773 + ... + 2088754.

It is an arithmetic number, because the mean of its divisors is an integer number (22284263232).

Almost surely, 2^317506457257 is an apocalyptic number.

It is an amenable number.

317506457257 is a deficient number, since it is larger than the sum of its proper divisors (39041754455).

317506457257 is a wasteful number, since it uses less digits than its factorization.

317506457257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4019748.

The product of its (nonzero) digits is 6174000, while the sum is 52.

The spelling of 317506457257 in words is "three hundred seventeen billion, five hundred six million, four hundred fifty-seven thousand, two hundred fifty-seven".