128829905584 has 20 divisors (see below), whose sum is σ = 249932553640. Its totient is φ = 64331182080.

The previous prime is 128829905531. The next prime is 128829905591. The reversal of 128829905584 is 485509928821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5222982 + ... + 5247589.

It is an arithmetic number, because the mean of its divisors is an integer number (12496627682).

Almost surely, 2^128829905584 is an apocalyptic number.

It is an amenable number.

128829905584 is a deficient number, since it is larger than the sum of its proper divisors (121102648056).

128829905584 is a wasteful number, since it uses less digits than its factorization.

128829905584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10471348 (or 10471342 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 61.

The spelling of 128829905584 in words is "one hundred twenty-eight billion, eight hundred twenty-nine million, nine hundred five thousand, five hundred eighty-four".