315768867523 has 4 divisors (see below), whose sum is σ = 315774851920. Its totient is φ = 315762883128.

The previous prime is 315768867493. The next prime is 315768867551. The reversal of 315768867523 is 325768867513.

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-315768867523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315768867223) 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, 2912340 + ... + 3018817.

It is an arithmetic number, because the mean of its divisors is an integer number (78943712980).

Almost surely, 2^315768867523 is an apocalyptic number.

315768867523 is a deficient number, since it is larger than the sum of its proper divisors (5984397).

315768867523 is an equidigital number, since it uses as much as digits as its factorization.

315768867523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5984396.

The product of its digits is 50803200, while the sum is 61.

The spelling of 315768867523 in words is "three hundred fifteen billion, seven hundred sixty-eight million, eight hundred sixty-seven thousand, five hundred twenty-three".