28383274570056 has 128 divisors (see below), whose sum is σ = 85842416563200. Its totient is φ = 7647778817280.

The previous prime is 28383274570037. The next prime is 28383274570087. The reversal of 28383274570056 is 65007547238382.

It is a super-2 number, since 2×28383274570056² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67532310 + ... + 67951301.

It is an arithmetic number, because the mean of its divisors is an integer number (670643879400).

Almost surely, 2^{28383274570056} is an apocalyptic number.

It is an amenable number.

28383274570056 is an abundant number, since it is smaller than the sum of its proper divisors (57459141993144).

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

28383274570056 is a wasteful number, since it uses less digits than its factorization.

28383274570056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135483699 (or 135483695 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 60.

The spelling of 28383274570056 in words is "twenty-eight trillion, three hundred eighty-three billion, two hundred seventy-four million, five hundred seventy thousand, fifty-six".