28979476798 has 8 divisors (see below), whose sum is σ = 43469938008. Its totient is φ = 14489497464.

The previous prime is 28979476789. The next prime is 28979476829. The reversal of 28979476798 is 89767497982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168765 + ... + 294007.

It is an arithmetic number, because the mean of its divisors is an integer number (5433742251).

Almost surely, 2^28979476798 is an apocalyptic number.

28979476798 is a deficient number, since it is larger than the sum of its proper divisors (14490461210).

28979476798 is a wasteful number, since it uses less digits than its factorization.

28979476798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240938.

The product of its digits is 768144384, while the sum is 76.

The spelling of 28979476798 in words is "twenty-eight billion, nine hundred seventy-nine million, four hundred seventy-six thousand, seven hundred ninety-eight".