28558833696 has 144 divisors (see below), whose sum is σ = 82390089600. Its totient is φ = 9382224384.

The previous prime is 28558833649. The next prime is 28558833713. The reversal of 28558833696 is 69633885582.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

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, 22683115 + ... + 22684373.

It is an arithmetic number, because the mean of its divisors is an integer number (572153400).

Almost surely, 2^28558833696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28558833696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41195044800).

28558833696 is an abundant number, since it is smaller than the sum of its proper divisors (53831255904).

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

28558833696 is a wasteful number, since it uses less digits than its factorization.

28558833696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351 (or 2340 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 63.

The spelling of 28558833696 in words is "twenty-eight billion, five hundred fifty-eight million, eight hundred thirty-three thousand, six hundred ninety-six".