642613634504 has 32 divisors (see below), whose sum is σ = 1237471213440. Its totient is φ = 312676459200.

The previous prime is 642613634489. The next prime is 642613634557. The reversal of 642613634504 is 405436316246.

642613634504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 3353387 + ... + 3539834.

It is an arithmetic number, because the mean of its divisors is an integer number (38670975420).

Almost surely, 2^642613634504 is an apocalyptic number.

It is an amenable number.

642613634504 is a deficient number, since it is larger than the sum of its proper divisors (594857578936).

642613634504 is a wasteful number, since it uses less digits than its factorization.

642613634504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6893541 (or 6893537 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 642613634504 in words is "six hundred forty-two billion, six hundred thirteen million, six hundred thirty-four thousand, five hundred four".