28322857256 has 16 divisors (see below), whose sum is σ = 53182220640. Its totient is φ = 14140931760.

The previous prime is 28322857247. The next prime is 28322857313. The reversal of 28322857256 is 65275822382.

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, 2556236 + ... + 2567291.

It is an arithmetic number, because the mean of its divisors is an integer number (3323888790).

Almost surely, 2^28322857256 is an apocalyptic number.

It is an amenable number.

28322857256 is a deficient number, since it is larger than the sum of its proper divisors (24859363384).

28322857256 is a wasteful number, since it uses less digits than its factorization.

28322857256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5124224 (or 5124220 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 50.

The spelling of 28322857256 in words is "twenty-eight billion, three hundred twenty-two million, eight hundred fifty-seven thousand, two hundred fifty-six".