128484480520 has 64 divisors (see below), whose sum is σ = 331969492800. Its totient is φ = 44262593280.

The previous prime is 128484480517. The next prime is 128484480589. The reversal of 128484480520 is 25084484821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7676119 + ... + 7692838.

It is an arithmetic number, because the mean of its divisors is an integer number (5187023325).

Almost surely, 2^128484480520 is an apocalyptic number.

128484480520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128484480520 is an abundant number, since it is smaller than the sum of its proper divisors (203485012280).

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

128484480520 is a wasteful number, since it uses less digits than its factorization.

128484480520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15368998 (or 15368994 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 46.

The spelling of 128484480520 in words is "one hundred twenty-eight billion, four hundred eighty-four million, four hundred eighty thousand, five hundred twenty".