1813468864 has 28 divisors (see below), whose sum is σ = 3695866624. Its totient is φ = 882226944.

The previous prime is 1813468841. The next prime is 1813468871. The reversal of 1813468864 is 4688643181.

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, 380544 + ... + 385279.

Almost surely, 2^1813468864 is an apocalyptic number.

It is an amenable number.

1813468864 is an abundant number, since it is smaller than the sum of its proper divisors (1882397760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1813468864 is an equidigital number, since it uses as much as digits as its factorization.

1813468864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765872 (or 765862 counting only the distinct ones).

The product of its digits is 884736, while the sum is 49.

The square root of 1813468864 is about 42584.8431252247. The cubic root of 1813468864 is about 1219.4669497872.

The spelling of 1813468864 in words is "one billion, eight hundred thirteen million, four hundred sixty-eight thousand, eight hundred sixty-four".