315815847923 has 16 divisors (see below), whose sum is σ = 335857531680. Its totient is φ = 295937433600.

The previous prime is 315815847887. The next prime is 315815847931. The reversal of 315815847923 is 329748518513.

It is a cyclic number.

It is not a de Polignac number, because 315815847923 - 2⁶ = 315815847859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315815847223) 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, 33103088 + ... + 33112626.

It is an arithmetic number, because the mean of its divisors is an integer number (20991095730).

Almost surely, 2^315815847923 is an apocalyptic number.

315815847923 is a deficient number, since it is larger than the sum of its proper divisors (20041683757).

315815847923 is a wasteful number, since it uses less digits than its factorization.

315815847923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17878.

The product of its digits is 7257600, while the sum is 56.

The spelling of 315815847923 in words is "three hundred fifteen billion, eight hundred fifteen million, eight hundred forty-seven thousand, nine hundred twenty-three".