128569689184 has 48 divisors (see below), whose sum is σ = 254451422736. Its totient is φ = 63947980800.

The previous prime is 128569689163. The next prime is 128569689191. The reversal of 128569689184 is 481986965821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4827264 + ... + 4853824.

It is an arithmetic number, because the mean of its divisors is an integer number (5301071307).

Almost surely, 2^128569689184 is an apocalyptic number.

It is an amenable number.

128569689184 is a deficient number, since it is larger than the sum of its proper divisors (125881733552).

128569689184 is a wasteful number, since it uses less digits than its factorization.

128569689184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27359 (or 27351 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 67.

The spelling of 128569689184 in words is "one hundred twenty-eight billion, five hundred sixty-nine million, six hundred eighty-nine thousand, one hundred eighty-four".