2564863948 has 12 divisors (see below), whose sum is σ = 4518637200. Its totient is φ = 1273824752.

The previous prime is 2564863909. The next prime is 2564863963. The reversal of 2564863948 is 8493684652.

2564863948 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 3 ways as a sum of consecutive naturals, for example, 2151136 + ... + 2152327.

It is an arithmetic number, because the mean of its divisors is an integer number (376553100).

Almost surely, 2^2564863948 is an apocalyptic number.

It is an amenable number.

2564863948 is a deficient number, since it is larger than the sum of its proper divisors (1953773252).

2564863948 is a wasteful number, since it uses less digits than its factorization.

2564863948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303616 (or 4303614 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 55.

The square root of 2564863948 is about 50644.4858597656. The cubic root of 2564863948 is about 1368.8465877699.

The spelling of 2564863948 in words is "two billion, five hundred sixty-four million, eight hundred sixty-three thousand, nine hundred forty-eight".