128913582880 has 48 divisors (see below), whose sum is σ = 307404720000. Its totient is φ = 51083506432.

The previous prime is 128913582877. The next prime is 128913582881. The reversal of 128913582880 is 88285319821.

It is not an unprimeable number, because it can be changed into a prime (128913582881) 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, 3747880 + ... + 3782119.

It is an arithmetic number, because the mean of its divisors is an integer number (6404265000).

Almost surely, 2^128913582880 is an apocalyptic number.

128913582880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128913582880 is an abundant number, since it is smaller than the sum of its proper divisors (178491137120).

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

128913582880 is a wasteful number, since it uses less digits than its factorization.

128913582880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7530121 (or 7530113 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 55.

The spelling of 128913582880 in words is "one hundred twenty-eight billion, nine hundred thirteen million, five hundred eighty-two thousand, eight hundred eighty".