128256114884 has 24 divisors (see below), whose sum is σ = 242023740000. Its totient is φ = 59271117120.

The previous prime is 128256114881. The next prime is 128256114887. The reversal of 128256114884 is 488411652821.

It is an interprime number because it is at equal distance from previous prime (128256114881) and next prime (128256114887).

It is not an unprimeable number, because it can be changed into a prime (128256114881) 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, 20577134 + ... + 20583365.

It is an arithmetic number, because the mean of its divisors is an integer number (10084322500).

Almost surely, 2^128256114884 is an apocalyptic number.

It is an amenable number.

128256114884 is a deficient number, since it is larger than the sum of its proper divisors (113767625116).

128256114884 is a wasteful number, since it uses less digits than its factorization.

128256114884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41160563 (or 41160561 counting only the distinct ones).

The product of its digits is 983040, while the sum is 50.

The spelling of 128256114884 in words is "one hundred twenty-eight billion, two hundred fifty-six million, one hundred fourteen thousand, eight hundred eighty-four".