2564240626 has 16 divisors (see below), whose sum is σ = 3879943488. Its totient is φ = 1270962000.

The previous prime is 2564240603. The next prime is 2564240641. The reversal of 2564240626 is 6260424652.

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 7 ways as a sum of consecutive naturals, for example, 139636 + ... + 156928.

It is an arithmetic number, because the mean of its divisors is an integer number (242496468).

Almost surely, 2^2564240626 is an apocalyptic number.

2564240626 is a deficient number, since it is larger than the sum of its proper divisors (1315702862).

2564240626 is a wasteful number, since it uses less digits than its factorization.

2564240626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17937.

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 2564240626 is about 50638.3315878397. The cubic root of 2564240626 is about 1368.7356915277.

The spelling of 2564240626 in words is "two billion, five hundred sixty-four million, two hundred forty thousand, six hundred twenty-six".