28474566731285 has 24 divisors (see below), whose sum is σ = 36303012349920. Its totient is φ = 21436525923584.

The previous prime is 28474566731227. The next prime is 28474566731333. The reversal of 28474566731285 is 58213766547482.

It is not a de Polignac number, because 28474566731285 - 2¹⁴ = 28474566714901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8421806 + ... + 11308224.

It is an arithmetic number, because the mean of its divisors is an integer number (1512625514580).

Almost surely, 2^{28474566731285} is an apocalyptic number.

It is an amenable number.

28474566731285 is a deficient number, since it is larger than the sum of its proper divisors (7828445618635).

28474566731285 is a wasteful number, since it uses less digits than its factorization.

28474566731285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893285 (or 2893268 counting only the distinct ones).

The product of its digits is 541900800, while the sum is 68.

The spelling of 28474566731285 in words is "twenty-eight trillion, four hundred seventy-four billion, five hundred sixty-six million, seven hundred thirty-one thousand, two hundred eighty-five".