815815468 has 48 divisors (see below), whose sum is σ = 1592398080. Its totient is φ = 363168000.

The previous prime is 815815459. The next prime is 815815487. The reversal of 815815468 is 864518518.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 626418 + ... + 627718.

It is an arithmetic number, because the mean of its divisors is an integer number (33174960).

Almost surely, 2^815815468 is an apocalyptic number.

It is an amenable number.

815815468 is a deficient number, since it is larger than the sum of its proper divisors (776582612).

815815468 is a wasteful number, since it uses less digits than its factorization.

815815468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738 (or 1736 counting only the distinct ones).

The product of its digits is 307200, while the sum is 46.

The square root of 815815468 is about 28562.4835754876. The cubic root of 815815468 is about 934.3952996608.

The spelling of 815815468 in words is "eight hundred fifteen million, eight hundred fifteen thousand, four hundred sixty-eight".