28251175856 has 40 divisors (see below), whose sum is σ = 55920438720. Its totient is φ = 13820301824.

The previous prime is 28251175837. The next prime is 28251175871. The reversal of 28251175856 is 65857115282.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3347450 + ... + 3355878.

It is an arithmetic number, because the mean of its divisors is an integer number (1398010968).

Almost surely, 2^28251175856 is an apocalyptic number.

It is an amenable number.

28251175856 is a deficient number, since it is larger than the sum of its proper divisors (27669262864).

28251175856 is a wasteful number, since it uses less digits than its factorization.

28251175856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12941 (or 12935 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 50.

The spelling of 28251175856 in words is "twenty-eight billion, two hundred fifty-one million, one hundred seventy-five thousand, eight hundred fifty-six".