642625225324 has 24 divisors (see below), whose sum is σ = 1175090605920. Its totient is φ = 306923172864.

The previous prime is 642625225309. The next prime is 642625225337. The reversal of 642625225324 is 423522526246.

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, 4697269 + ... + 4832140.

It is an arithmetic number, because the mean of its divisors is an integer number (48962108580).

Almost surely, 2^642625225324 is an apocalyptic number.

It is an amenable number.

642625225324 is a deficient number, since it is larger than the sum of its proper divisors (532465380596).

642625225324 is a wasteful number, since it uses less digits than its factorization.

642625225324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9530169 (or 9530167 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 43.

The spelling of 642625225324 in words is "six hundred forty-two billion, six hundred twenty-five million, two hundred twenty-five thousand, three hundred twenty-four".