28809000704 has 72 divisors (see below), whose sum is σ = 65460915072. Its totient is φ = 12525624320.

The previous prime is 28809000659. The next prime is 28809000721. The reversal of 28809000704 is 40700090882.

It is a pancake number, because a pancake can be divided into 28809000704 parts by 240037 straight cuts.

It is a congruent number.

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, 157634 + ... + 287169.

It is an arithmetic number, because the mean of its divisors is an integer number (909179376).

Almost surely, 2^28809000704 is an apocalyptic number.

It is an amenable number.

28809000704 is an abundant number, since it is smaller than the sum of its proper divisors (36651914368).

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

28809000704 is a wasteful number, since it uses less digits than its factorization.

28809000704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444853 (or 444839 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 28809000704 in words is "twenty-eight billion, eight hundred nine million, seven hundred four", and thus it is an aban number.