875972128444 has 12 divisors (see below), whose sum is σ = 1751944256944. Its totient is φ = 375416626464.

The previous prime is 875972128441. The next prime is 875972128457. The reversal of 875972128444 is 444821279578.

875972128444 is an admirable number.

It is a super-2 number, since 2×875972128444² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (875972128441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15642359409 + ... + 15642359464.

Almost surely, 2^875972128444 is an apocalyptic number.

It is an amenable number.

875972128444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

875972128444 is a wasteful number, since it uses less digits than its factorization.

875972128444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31284718884 (or 31284718882 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 61.

The spelling of 875972128444 in words is "eight hundred seventy-five billion, nine hundred seventy-two million, one hundred twenty-eight thousand, four hundred forty-four".