28685310084 has 24 divisors (see below), whose sum is σ = 74369322720. Its totient is φ = 9561769992.

The previous prime is 28685310079. The next prime is 28685310133. The reversal of 28685310084 is 48001358682.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132802254 + ... + 132802469.

It is an arithmetic number, because the mean of its divisors is an integer number (3098721780).

Almost surely, 2^28685310084 is an apocalyptic number.

It is an amenable number.

28685310084 is an abundant number, since it is smaller than the sum of its proper divisors (45684012636).

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

28685310084 is a wasteful number, since it uses less digits than its factorization.

28685310084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265604736 (or 265604728 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 28685310084 in words is "twenty-eight billion, six hundred eighty-five million, three hundred ten thousand, eighty-four".