642055204624 has 40 divisors (see below), whose sum is σ = 1256675418072. Its totient is φ = 317753779200.

The previous prime is 642055204607. The next prime is 642055204627. The reversal of 642055204624 is 426402550246.

It can be written as a sum of positive squares in 4 ways, for example, as 56248660224 + 585806544400 = 237168^2 + 765380^2 .

It is not an unprimeable number, because it can be changed into a prime (642055204627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5489862 + ... + 5605594.

Almost surely, 2^642055204624 is an apocalyptic number.

It is an amenable number.

642055204624 is a deficient number, since it is larger than the sum of its proper divisors (614620213448).

642055204624 is a wasteful number, since it uses less digits than its factorization.

642055204624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119275 (or 119269 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

The spelling of 642055204624 in words is "six hundred forty-two billion, fifty-five million, two hundred four thousand, six hundred twenty-four".