128980639512 has 48 divisors (see below), whose sum is σ = 349668969000. Its totient is φ = 42950912256.

The previous prime is 128980639507. The next prime is 128980639577. The reversal of 128980639512 is 215936089821.

128980639512 is a `hidden beast` number, since 1 + 2 + 8 + 98 + 0 + 6 + 39 + 512 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 815062 + ... + 960357.

Almost surely, 2^128980639512 is an apocalyptic number.

128980639512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128980639512 is an abundant number, since it is smaller than the sum of its proper divisors (220688329488).

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

128980639512 is a wasteful number, since it uses less digits than its factorization.

128980639512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776440 (or 1776433 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 128980639512 in words is "one hundred twenty-eight billion, nine hundred eighty million, six hundred thirty-nine thousand, five hundred twelve".