2564012826 has 32 divisors (see below), whose sum is σ = 5729659200. Its totient is φ = 849893040.

The previous prime is 2564012819. The next prime is 2564012863. The reversal of 2564012826 is 6282104652.

It is a happy number.

2564012826 is a `hidden beast` number, since 2 + 5 + 640 + 1 + 2 + 8 + 2 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122965 + ... + 142296.

It is an arithmetic number, because the mean of its divisors is an integer number (179051850).

Almost surely, 2^2564012826 is an apocalyptic number.

2564012826 is an abundant number, since it is smaller than the sum of its proper divisors (3165646374).

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

2564012826 is a wasteful number, since it uses less digits than its factorization.

2564012826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265451 (or 265445 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 2564012826 is about 50636.0822536657. The cubic root of 2564012826 is about 1368.6951587710.

The spelling of 2564012826 in words is "two billion, five hundred sixty-four million, twelve thousand, eight hundred twenty-six".