28788785674 has 64 divisors (see below), whose sum is σ = 50099212800. Its totient is φ = 12269966400.

The previous prime is 28788785657. The next prime is 28788785687. The reversal of 28788785674 is 47658788782.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27133104 + ... + 27134164.

It is an arithmetic number, because the mean of its divisors is an integer number (782800200).

Almost surely, 2^28788785674 is an apocalyptic number.

28788785674 is a deficient number, since it is larger than the sum of its proper divisors (21310427126).

28788785674 is a wasteful number, since it uses less digits than its factorization.

28788785674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699.

The product of its digits is 337182720, while the sum is 70.

The spelling of 28788785674 in words is "twenty-eight billion, seven hundred eighty-eight million, seven hundred eighty-five thousand, six hundred seventy-four".