128802388172 has 12 divisors (see below), whose sum is σ = 225408387120. Its totient is φ = 64399991856.

The previous prime is 128802388151. The next prime is 128802388181. The reversal of 128802388172 is 271883208821.

It is a self number, because there is not a number n which added to its sum of digits gives 128802388172.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33047 + ... + 508622.

It is an arithmetic number, because the mean of its divisors is an integer number (18784032260).

Almost surely, 2^128802388172 is an apocalyptic number.

It is an amenable number.

128802388172 is a deficient number, since it is larger than the sum of its proper divisors (96605998948).

128802388172 is a wasteful number, since it uses less digits than its factorization.

128802388172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601120 (or 601118 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 50.

The spelling of 128802388172 in words is "one hundred twenty-eight billion, eight hundred two million, three hundred eighty-eight thousand, one hundred seventy-two".