28256795607656 has 64 divisors (see below), whose sum is σ = 69531417792000. Its totient is φ = 10429712660160.

The previous prime is 28256795607629. The next prime is 28256795607679. The reversal of 28256795607656 is 65670659765282.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1207130966 + ... + 1207154373.

It is an arithmetic number, because the mean of its divisors is an integer number (1086428403000).

Almost surely, 2^{28256795607656} is an apocalyptic number.

It is an amenable number.

28256795607656 is an abundant number, since it is smaller than the sum of its proper divisors (41274622184344).

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

28256795607656 is a wasteful number, since it uses less digits than its factorization.

28256795607656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414285382 (or 2414285378 counting only the distinct ones).

The product of its (nonzero) digits is 2286144000, while the sum is 74.

The spelling of 28256795607656 in words is "twenty-eight trillion, two hundred fifty-six billion, seven hundred ninety-five million, six hundred seven thousand, six hundred fifty-six".