28959099122 has 6 divisors (see below), whose sum is σ = 43439009679. Its totient is φ = 14479429230.

The previous prime is 28959099073. The next prime is 28959099133. The reversal of 28959099122 is 22199095982.

It can be written as a sum of positive squares in only one way, i.e., 14479549561 + 14479549561 = 120331^2 + 120331^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=120331.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 180497 + ... + 300827.

Almost surely, 2^28959099122 is an apocalyptic number.

28959099122 is a deficient number, since it is larger than the sum of its proper divisors (14479910557).

28959099122 is an frugal number, since it uses more digits than its factorization.

28959099122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240664 (or 120333 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 56.

The spelling of 28959099122 in words is "twenty-eight billion, nine hundred fifty-nine million, ninety-nine thousand, one hundred twenty-two".