870704639985 has 16 divisors (see below), whose sum is σ = 1393676176320. Its totient is φ = 464192890560.

The previous prime is 870704639951. The next prime is 870704639993. The reversal of 870704639985 is 589936407078.

It is not a de Polignac number, because 870704639985 - 2⁶ = 870704639921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11392986 + ... + 11469155.

It is an arithmetic number, because the mean of its divisors is an integer number (87104761020).

Almost surely, 2^870704639985 is an apocalyptic number.

It is an amenable number.

870704639985 is a deficient number, since it is larger than the sum of its proper divisors (522971536335).

870704639985 is a wasteful number, since it uses less digits than its factorization.

870704639985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22864688.

The product of its (nonzero) digits is 91445760, while the sum is 66.

The spelling of 870704639985 in words is "eight hundred seventy billion, seven hundred four million, six hundred thirty-nine thousand, nine hundred eighty-five".