128959871076 has 36 divisors (see below), whose sum is σ = 326127692800. Its totient is φ = 42967397808.

The previous prime is 128959871063. The next prime is 128959871119. The reversal of 128959871076 is 670178959821.

128959871076 is a `hidden beast` number, since 1 + 28 + 9 + 598 + 7 + 10 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 719356 + ... + 880563.

Almost surely, 2^128959871076 is an apocalyptic number.

It is an amenable number.

128959871076 is an abundant number, since it is smaller than the sum of its proper divisors (197167821724).

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

128959871076 is a wasteful number, since it uses less digits than its factorization.

128959871076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602168 (or 1602163 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 63.

The spelling of 128959871076 in words is "one hundred twenty-eight billion, nine hundred fifty-nine million, eight hundred seventy-one thousand, seventy-six".