28821336256 has 28 divisors (see below), whose sum is σ = 57203108352. Its totient is φ = 14407954688.

The previous prime is 28821336197. The next prime is 28821336293. The reversal of 28821336256 is 65263312882.

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, 324801 + ... + 403903.

Almost surely, 2^28821336256 is an apocalyptic number.

It is an amenable number.

28821336256 is a deficient number, since it is larger than the sum of its proper divisors (28381772096).

28821336256 is an equidigital number, since it uses as much as digits as its factorization.

28821336256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84808 (or 84798 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The spelling of 28821336256 in words is "twenty-eight billion, eight hundred twenty-one million, three hundred thirty-six thousand, two hundred fifty-six".