2564620376 has 16 divisors (see below), whose sum is σ = 4813263000. Its totient is φ = 1281083584.

The previous prime is 2564620369. The next prime is 2564620433. The reversal of 2564620376 is 6730264652.

It is a congruent number.

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, 144410 + ... + 161193.

Almost surely, 2^2564620376 is an apocalyptic number.

It is an amenable number.

2564620376 is a deficient number, since it is larger than the sum of its proper divisors (2248642624).

2564620376 is a wasteful number, since it uses less digits than its factorization.

2564620376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306658 (or 306654 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 41.

The square root of 2564620376 is about 50642.0810788814. The cubic root of 2564620376 is about 1368.8032556137.

The spelling of 2564620376 in words is "two billion, five hundred sixty-four million, six hundred twenty thousand, three hundred seventy-six".