128887008896 has 32 divisors (see below), whose sum is σ = 270281150400. Its totient is φ = 61051739904.

The previous prime is 128887008883. The next prime is 128887008973. The reversal of 128887008896 is 698800788821.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×128887008896² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26495720 + ... + 26500583.

It is an arithmetic number, because the mean of its divisors is an integer number (8446285950).

Almost surely, 2^128887008896 is an apocalyptic number.

128887008896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

128887008896 is an abundant number, since it is smaller than the sum of its proper divisors (141394141504).

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

128887008896 is an equidigital number, since it uses as much as digits as its factorization.

128887008896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52996336 (or 52996324 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 65.

The spelling of 128887008896 in words is "one hundred twenty-eight billion, eight hundred eighty-seven million, eight thousand, eight hundred ninety-six".