28056628833 has 16 divisors (see below), whose sum is σ = 38620065792. Its totient is φ = 18098946000.

The previous prime is 28056628829. The next prime is 28056628841. The reversal of 28056628833 is 33882665082.

It is not a de Polignac number, because 28056628833 - 2² = 28056628829 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28056628823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1393468 + ... + 1413458.

It is an arithmetic number, because the mean of its divisors is an integer number (2413754112).

Almost surely, 2^28056628833 is an apocalyptic number.

It is an amenable number.

28056628833 is a deficient number, since it is larger than the sum of its proper divisors (10563436959).

28056628833 is a wasteful number, since it uses less digits than its factorization.

28056628833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35116.

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 28056628833 in words is "twenty-eight billion, fifty-six million, six hundred twenty-eight thousand, eight hundred thirty-three".