670907785536 has 42 divisors (see below), whose sum is σ = 1923036032762. Its totient is φ = 223635928320.

The previous prime is 670907785469. The next prime is 670907785549. The reversal of 670907785536 is 635587709076.

670907785536 is a `hidden beast` number, since 6 + 7 + 0 + 9 + 0 + 7 + 78 + 553 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 654390395136 + 16517390400 = 808944^2 + 128520^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 582384655 + ... + 582385806.

Almost surely, 2^670907785536 is an apocalyptic number.

It is an amenable number.

670907785536 is an abundant number, since it is smaller than the sum of its proper divisors (1252128247226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670907785536 is a wasteful number, since it uses less digits than its factorization.

670907785536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164770479 (or 1164770466 counting only the distinct ones).

The product of its (nonzero) digits is 66679200, while the sum is 63.

The spelling of 670907785536 in words is "six hundred seventy billion, nine hundred seven million, seven hundred eighty-five thousand, five hundred thirty-six".