870672350056621 has 32 divisors (see below), whose sum is σ = 997354889637120. Its totient is φ = 744567589269504.

The previous prime is 870672350056603. The next prime is 870672350056627. The reversal of 870672350056621 is 126650053276078.

It is a happy number.

It is not a de Polignac number, because 870672350056621 - 2⁵ = 870672350056589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870672350056627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17928694086 + ... + 17928742648.

It is an arithmetic number, because the mean of its divisors is an integer number (31167340301160).

Almost surely, 2^{870672350056621} is an apocalyptic number.

It is an amenable number.

870672350056621 is a deficient number, since it is larger than the sum of its proper divisors (126682539580499).

870672350056621 is a wasteful number, since it uses less digits than its factorization.

870672350056621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52885.

The product of its (nonzero) digits is 25401600, while the sum is 58.

The spelling of 870672350056621 in words is "eight hundred seventy trillion, six hundred seventy-two billion, three hundred fifty million, fifty-six thousand, six hundred twenty-one".