28804910856 has 16 divisors (see below), whose sum is σ = 72012277200. Its totient is φ = 9601636944.

The previous prime is 28804910843. The next prime is 28804910903. The reversal of 28804910856 is 65801940882.

It is a junction number, because it is equal to n+sod(n) for n = 28804910799 and 28804910808.

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, 600102286 + ... + 600102333.

It is an arithmetic number, because the mean of its divisors is an integer number (4500767325).

Almost surely, 2^28804910856 is an apocalyptic number.

It is an amenable number.

28804910856 is an abundant number, since it is smaller than the sum of its proper divisors (43207366344).

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

28804910856 is a wasteful number, since it uses less digits than its factorization.

28804910856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200204628 (or 1200204624 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 51.

The spelling of 28804910856 in words is "twenty-eight billion, eight hundred four million, nine hundred ten thousand, eight hundred fifty-six".