28044570654 has 32 divisors (see below), whose sum is σ = 63377568000. Its totient is φ = 9189745272.

The previous prime is 28044570623. The next prime is 28044570661. The reversal of 28044570654 is 45607544082.

28044570654 is a `hidden beast` number, since 2 + 80 + 445 + 70 + 65 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4398034 + ... + 4404405.

It is an arithmetic number, because the mean of its divisors is an integer number (1980549000).

Almost surely, 2^28044570654 is an apocalyptic number.

28044570654 is an abundant number, since it is smaller than the sum of its proper divisors (35332997346).

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

28044570654 is a wasteful number, since it uses less digits than its factorization.

28044570654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8802509 (or 8802503 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 45.

The spelling of 28044570654 in words is "twenty-eight billion, forty-four million, five hundred seventy thousand, six hundred fifty-four".