28489359532 has 24 divisors (see below), whose sum is σ = 51589586160. Its totient is φ = 13749744960.

The previous prime is 28489359517. The next prime is 28489359551. The reversal of 28489359532 is 23595398482.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421782 + ... + 484642.

It is an arithmetic number, because the mean of its divisors is an integer number (2149566090).

Almost surely, 2^28489359532 is an apocalyptic number.

It is an amenable number.

28489359532 is a deficient number, since it is larger than the sum of its proper divisors (23100226628).

28489359532 is a wasteful number, since it uses less digits than its factorization.

28489359532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66801 (or 66799 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 58.

The spelling of 28489359532 in words is "twenty-eight billion, four hundred eighty-nine million, three hundred fifty-nine thousand, five hundred thirty-two".