2564352782 has 16 divisors (see below), whose sum is σ = 3980469600. Its totient is φ = 1237558560.

The previous prime is 2564352779. The next prime is 2564352799. The reversal of 2564352782 is 2872534652.

It is a happy number.

2564352782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2564352782² = 13151810381102279048, which contains 22 as substring.

It is a congruent number.

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, 249644 + ... + 259712.

It is an arithmetic number, because the mean of its divisors is an integer number (248779350).

Almost surely, 2^2564352782 is an apocalyptic number.

2564352782 is a deficient number, since it is larger than the sum of its proper divisors (1416116818).

2564352782 is a wasteful number, since it uses less digits than its factorization.

2564352782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14491.

The product of its digits is 806400, while the sum is 44.

The square root of 2564352782 is about 50639.4389976824. The cubic root of 2564352782 is about 1368.7556467119.

The spelling of 2564352782 in words is "two billion, five hundred sixty-four million, three hundred fifty-two thousand, seven hundred eighty-two".