28672575856 has 20 divisors (see below), whose sum is σ = 55655818504. Its totient is φ = 14309784000.

The previous prime is 28672575839. The next prime is 28672575881. The reversal of 28672575856 is 65857527682.

It is a junction number, because it is equal to n+sod(n) for n = 28672575794 and 28672575803.

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, 1647570 + ... + 1664881.

Almost surely, 2^28672575856 is an apocalyptic number.

It is an amenable number.

28672575856 is a deficient number, since it is larger than the sum of its proper divisors (26983242648).

28672575856 is a wasteful number, since it uses less digits than its factorization.

28672575856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313000 (or 3312994 counting only the distinct ones).

The product of its digits is 56448000, while the sum is 61.

The spelling of 28672575856 in words is "twenty-eight billion, six hundred seventy-two million, five hundred seventy-five thousand, eight hundred fifty-six".