2564479880 has 32 divisors (see below), whose sum is σ = 5771615040. Its totient is φ = 1025519040.

The previous prime is 2564479877. The next prime is 2564479901. The reversal of 2564479880 is 889744652.

2564479880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 217907 + ... + 229373.

It is an arithmetic number, because the mean of its divisors is an integer number (180362970).

Almost surely, 2^2564479880 is an apocalyptic number.

2564479880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2564479880 is an abundant number, since it is smaller than the sum of its proper divisors (3207135160).

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

2564479880 is a wasteful number, since it uses less digits than its factorization.

2564479880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17069 (or 17065 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The square root of 2564479880 is about 50640.6939130972. The cubic root of 2564479880 is about 1368.7782597253.

The spelling of 2564479880 in words is "two billion, five hundred sixty-four million, four hundred seventy-nine thousand, eight hundred eighty".