2815854564 has 24 divisors (see below), whose sum is σ = 6572307168. Its totient is φ = 938335360.

The previous prime is 2815854491. The next prime is 2815854583. The reversal of 2815854564 is 4654585182.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8284 + ... + 75500.

It is an arithmetic number, because the mean of its divisors is an integer number (273846132).

Almost surely, 2^2815854564 is an apocalyptic number.

It is an amenable number.

2815854564 is an abundant number, since it is smaller than the sum of its proper divisors (3756452604).

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

2815854564 is a wasteful number, since it uses less digits than its factorization.

2815854564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70715 (or 70713 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 48.

The square root of 2815854564 is about 53064.6262966206. The cubic root of 2815854564 is about 1412.1150231181.

The spelling of 2815854564 in words is "two billion, eight hundred fifteen million, eight hundred fifty-four thousand, five hundred sixty-four".