670520386904 has 16 divisors (see below), whose sum is σ = 1268975500200. Its totient is φ = 332126920192.

The previous prime is 670520386897. The next prime is 670520386919. The reversal of 670520386904 is 409683025076.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391658249 + ... + 391659960.

Almost surely, 2^670520386904 is an apocalyptic number.

It is an amenable number.

670520386904 is a deficient number, since it is larger than the sum of its proper divisors (598455113296).

670520386904 is a wasteful number, since it uses less digits than its factorization.

670520386904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783318322 (or 783318318 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 670520386904 in words is "six hundred seventy billion, five hundred twenty million, three hundred eighty-six thousand, nine hundred four".