28168858124 has 12 divisors (see below), whose sum is σ = 53776911048. Its totient is φ = 12804026400.

The previous prime is 28168858087. The next prime is 28168858181. The reversal of 28168858124 is 42185886182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320100617 + ... + 320100704.

It is an arithmetic number, because the mean of its divisors is an integer number (4481409254).

Almost surely, 2^28168858124 is an apocalyptic number.

It is an amenable number.

28168858124 is a deficient number, since it is larger than the sum of its proper divisors (25608052924).

28168858124 is a wasteful number, since it uses less digits than its factorization.

28168858124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640201336 (or 640201334 counting only the distinct ones).

The product of its digits is 1966080, while the sum is 53.

The spelling of 28168858124 in words is "twenty-eight billion, one hundred sixty-eight million, eight hundred fifty-eight thousand, one hundred twenty-four".