28472866896 has 20 divisors (see below), whose sum is σ = 73554906272. Its totient is φ = 9490955616.

The previous prime is 28472866889. The next prime is 28472866901. The reversal of 28472866896 is 69866827482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296592316 + ... + 296592411.

Almost surely, 2^28472866896 is an apocalyptic number.

It is an amenable number.

28472866896 is an abundant number, since it is smaller than the sum of its proper divisors (45082039376).

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

28472866896 is a wasteful number, since it uses less digits than its factorization.

28472866896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593184738 (or 593184732 counting only the distinct ones).

The product of its digits is 111476736, while the sum is 66.

The spelling of 28472866896 in words is "twenty-eight billion, four hundred seventy-two million, eight hundred sixty-six thousand, eight hundred ninety-six".