2564718684 has 48 divisors (see below), whose sum is σ = 6812225280. Its totient is φ = 743395840.

The previous prime is 2564718679. The next prime is 2564718713. The reversal of 2564718684 is 4868174652.

It is a congruent number.

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, 419349 + ... + 425420.

It is an arithmetic number, because the mean of its divisors is an integer number (141921360).

Almost surely, 2^2564718684 is an apocalyptic number.

It is an amenable number.

2564718684 is an abundant number, since it is smaller than the sum of its proper divisors (4247506596).

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

2564718684 is a wasteful number, since it uses less digits than its factorization.

2564718684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844810 (or 844808 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 51.

The square root of 2564718684 is about 50643.0516853003. The cubic root of 2564718684 is about 1368.8207452185.

The spelling of 2564718684 in words is "two billion, five hundred sixty-four million, seven hundred eighteen thousand, six hundred eighty-four".