28489201108 has 12 divisors (see below), whose sum is σ = 50190707700. Its totient is φ = 14148998912.

The previous prime is 28489201093. The next prime is 28489201109. The reversal of 28489201108 is 80110298482.

It can be written as a sum of positive squares in 2 ways, for example, as 13046665284 + 15442535824 = 114222^2 + 124268^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28489201109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23899741 + ... + 23900932.

It is an arithmetic number, because the mean of its divisors is an integer number (4182558975).

Almost surely, 2^28489201108 is an apocalyptic number.

It is an amenable number.

28489201108 is a deficient number, since it is larger than the sum of its proper divisors (21701506592).

28489201108 is a wasteful number, since it uses less digits than its factorization.

28489201108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47800826 (or 47800824 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 43.

The spelling of 28489201108 in words is "twenty-eight billion, four hundred eighty-nine million, two hundred one thousand, one hundred eight".