28564604704 has 12 divisors (see below), whose sum is σ = 56236565574. Its totient is φ = 14282302336.

The previous prime is 28564604683. The next prime is 28564604713. The reversal of 28564604704 is 40740646582.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19058354704 + 9506250000 = 138052^2 + 97500^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 446321917 + ... + 446321980.

Almost surely, 2^28564604704 is an apocalyptic number.

It is an amenable number.

28564604704 is a deficient number, since it is larger than the sum of its proper divisors (27671960870).

28564604704 is an equidigital number, since it uses as much as digits as its factorization.

28564604704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892643907 (or 892643899 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 46.

The spelling of 28564604704 in words is "twenty-eight billion, five hundred sixty-four million, six hundred four thousand, seven hundred four".