128859970832 has 40 divisors (see below), whose sum is σ = 262896819360. Its totient is φ = 61017960960.

The previous prime is 128859970823. The next prime is 128859970847. The reversal of 128859970832 is 238079958821.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831848 + ... + 974520.

It is an arithmetic number, because the mean of its divisors is an integer number (6572420484).

Almost surely, 2^128859970832 is an apocalyptic number.

It is an amenable number.

128859970832 is an abundant number, since it is smaller than the sum of its proper divisors (134036848528).

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

128859970832 is a wasteful number, since it uses less digits than its factorization.

128859970832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145671 (or 145665 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 62.

The spelling of 128859970832 in words is "one hundred twenty-eight billion, eight hundred fifty-nine million, nine hundred seventy thousand, eight hundred thirty-two".