28474566731284 has 12 divisors (see below), whose sum is σ = 50088680857684. Its totient is φ = 14163515057664.

The previous prime is 28474566731227. The next prime is 28474566731333. The reversal of 28474566731284 is 48213766547482.

It can be written as a sum of positive squares in 2 ways, for example, as 17584368730384 + 10890198000900 = 4193372^2 + 3300030^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18442076127 + ... + 18442077670.

Almost surely, 2^{28474566731284} is an apocalyptic number.

It is an amenable number.

28474566731284 is a deficient number, since it is larger than the sum of its proper divisors (21614114126400).

28474566731284 is a wasteful number, since it uses less digits than its factorization.

28474566731284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36884153994 (or 36884153992 counting only the distinct ones).

The product of its digits is 433520640, while the sum is 67.

The spelling of 28474566731284 in words is "twenty-eight trillion, four hundred seventy-four billion, five hundred sixty-six million, seven hundred thirty-one thousand, two hundred eighty-four".