870891022084 has 12 divisors (see below), whose sum is σ = 1613709835164. Its totient is φ = 409831069184.

The previous prime is 870891022049. The next prime is 870891022091. The reversal of 870891022084 is 480220198078.

It can be written as a sum of positive squares in 2 ways, for example, as 377634830400 + 493256191684 = 614520^2 + 702322^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6403610389 + ... + 6403610524.

It is an arithmetic number, because the mean of its divisors is an integer number (134475819597).

Almost surely, 2^870891022084 is an apocalyptic number.

It is an amenable number.

870891022084 is a deficient number, since it is larger than the sum of its proper divisors (742818813080).

870891022084 is a wasteful number, since it uses less digits than its factorization.

870891022084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12807220934 (or 12807220932 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 49.

The spelling of 870891022084 in words is "eight hundred seventy billion, eight hundred ninety-one million, twenty-two thousand, eighty-four".