128804932716 has 72 divisors (see below), whose sum is σ = 329576017680. Its totient is φ = 39015911424.

The previous prime is 128804932679. The next prime is 128804932721. The reversal of 128804932716 is 617239408821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203821 + ... + 546948.

It is an arithmetic number, because the mean of its divisors is an integer number (4577444690).

Almost surely, 2^128804932716 is an apocalyptic number.

It is an amenable number.

128804932716 is an abundant number, since it is smaller than the sum of its proper divisors (200771084964).

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

128804932716 is a wasteful number, since it uses less digits than its factorization.

128804932716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750851 (or 750820 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 128804932716 in words is "one hundred twenty-eight billion, eight hundred four million, nine hundred thirty-two thousand, seven hundred sixteen".