128976105178 has 16 divisors (see below), whose sum is σ = 203741727840. Its totient is φ = 61065370800.

The previous prime is 128976105173. The next prime is 128976105191. The reversal of 128976105178 is 871501679821.

It is not an unprimeable number, because it can be changed into a prime (128976105173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711288 + ... + 874003.

It is an arithmetic number, because the mean of its divisors is an integer number (12733857990).

Almost surely, 2^128976105178 is an apocalyptic number.

128976105178 is a deficient number, since it is larger than the sum of its proper divisors (74765622662).

128976105178 is a wasteful number, since it uses less digits than its factorization.

128976105178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587453.

The product of its (nonzero) digits is 1693440, while the sum is 55.

The spelling of 128976105178 in words is "one hundred twenty-eight billion, nine hundred seventy-six million, one hundred five thousand, one hundred seventy-eight".