28836959808 has 112 divisors (see below), whose sum is σ = 76886409600. Its totient is φ = 9538473984.

The previous prime is 28836959741. The next prime is 28836959857. The reversal of 28836959808 is 80895963882.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15611941 + ... + 15613787.

It is an arithmetic number, because the mean of its divisors is an integer number (686485800).

Almost surely, 2^28836959808 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 28836959808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38443204800).

28836959808 is an abundant number, since it is smaller than the sum of its proper divisors (48049449792).

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

28836959808 is a wasteful number, since it uses less digits than its factorization.

28836959808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444 (or 2434 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 66.

The spelling of 28836959808 in words is "twenty-eight billion, eight hundred thirty-six million, nine hundred fifty-nine thousand, eight hundred eight".