870697672528 has 10 divisors (see below), whose sum is σ = 1686976740554. Its totient is φ = 435348836256.

The previous prime is 870697672447. The next prime is 870697672531. The reversal of 870697672528 is 825276796078.

It can be written as a sum of positive squares in only one way, i.e., 682626268944 + 188071403584 = 826212^2 + 433672^2 .

It is a super-2 number, since 2×870697672528² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27209302251 + ... + 27209302282.

Almost surely, 2^870697672528 is an apocalyptic number.

It is an amenable number.

870697672528 is a deficient number, since it is larger than the sum of its proper divisors (816279068026).

870697672528 is a wasteful number, since it uses less digits than its factorization.

870697672528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54418604541 (or 54418604535 counting only the distinct ones).

The product of its (nonzero) digits is 142248960, while the sum is 67.

The spelling of 870697672528 in words is "eight hundred seventy billion, six hundred ninety-seven million, six hundred seventy-two thousand, five hundred twenty-eight".