28360544256 has 520 divisors, whose sum is σ = 97525322400. Its totient is φ = 8121876480.

The previous prime is 28360544239. The next prime is 28360544281. The reversal of 28360544256 is 65244506382.

28360544256 is a `hidden beast` number, since 2 + 83 + 6 + 0 + 544 + 25 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 69340980 + ... + 69341388.

Almost surely, 2^28360544256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28360544256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48762661200).

28360544256 is an abundant number, since it is smaller than the sum of its proper divisors (69164778144).

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

28360544256 is a wasteful number, since it uses less digits than its factorization.

28360544256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 28360544256 in words is "twenty-eight billion, three hundred sixty million, five hundred forty-four thousand, two hundred fifty-six".