28244484531 has 24 divisors (see below), whose sum is σ = 41373049536. Its totient is φ = 18564266880.

The previous prime is 28244484529. The next prime is 28244484563. The reversal of 28244484531 is 13548444282.

28244484531 is a `hidden beast` number, since 2 + 82 + 44 + 484 + 53 + 1 = 666.

It is not a de Polignac number, because 28244484531 - 2¹ = 28244484529 is a prime.

It is a super-2 number, since 2×28244484531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28244484571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1979001 + ... + 1993221.

It is an arithmetic number, because the mean of its divisors is an integer number (1723877064).

Almost surely, 2^28244484531 is an apocalyptic number.

28244484531 is a deficient number, since it is larger than the sum of its proper divisors (13128565005).

28244484531 is a wasteful number, since it uses less digits than its factorization.

28244484531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17323 (or 17320 counting only the distinct ones).

The product of its digits is 983040, while the sum is 45.

The spelling of 28244484531 in words is "twenty-eight billion, two hundred forty-four million, four hundred eighty-four thousand, five hundred thirty-one".