317845849715 has 4 divisors (see below), whose sum is σ = 381415019664. Its totient is φ = 254276679768.

The previous prime is 317845849709. The next prime is 317845849723. The reversal of 317845849715 is 517948548713.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317845849715 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31784584967 + ... + 31784584976.

It is an arithmetic number, because the mean of its divisors is an integer number (95353754916).

Almost surely, 2^317845849715 is an apocalyptic number.

317845849715 is a deficient number, since it is larger than the sum of its proper divisors (63569169949).

317845849715 is an equidigital number, since it uses as much as digits as its factorization.

317845849715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63569169948.

The product of its digits is 33868800, while the sum is 62.

The spelling of 317845849715 in words is "three hundred seventeen billion, eight hundred forty-five million, eight hundred forty-nine thousand, seven hundred fifteen".