28731275783 has 12 divisors (see below), whose sum is σ = 33467121360. Its totient is φ = 24593631552.

The previous prime is 28731275753. The next prime is 28731275789. The reversal of 28731275783 is 38757213782.

It is not a de Polignac number, because 28731275783 - 2²⁸ = 28462840327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28731275789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 358178 + ... + 430991.

It is an arithmetic number, because the mean of its divisors is an integer number (2788926780).

Almost surely, 2^28731275783 is an apocalyptic number.

28731275783 is a deficient number, since it is larger than the sum of its proper divisors (4735845577).

28731275783 is an equidigital number, since it uses as much as digits as its factorization.

28731275783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789926 (or 789919 counting only the distinct ones).

The product of its digits is 3951360, while the sum is 53.

The spelling of 28731275783 in words is "twenty-eight billion, seven hundred thirty-one million, two hundred seventy-five thousand, seven hundred eighty-three".