28776670704 has 60 divisors (see below), whose sum is σ = 84773387400. Its totient is φ = 9087368832.

The previous prime is 28776670687. The next prime is 28776670771. The reversal of 28776670704 is 40707667782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5256159 + ... + 5261630.

It is an arithmetic number, because the mean of its divisors is an integer number (1412889790).

Almost surely, 2^28776670704 is an apocalyptic number.

28776670704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28776670704 is an abundant number, since it is smaller than the sum of its proper divisors (55996716696).

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

28776670704 is a wasteful number, since it uses less digits than its factorization.

28776670704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10517822 (or 10517813 counting only the distinct ones).

The product of its (nonzero) digits is 5531904, while the sum is 54.

The spelling of 28776670704 in words is "twenty-eight billion, seven hundred seventy-six million, six hundred seventy thousand, seven hundred four".