28112634028 has 24 divisors (see below), whose sum is σ = 51358164480. Its totient is φ = 13439397840.

The previous prime is 28112633953. The next prime is 28112634037. The reversal of 28112634028 is 82043621182.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153693 + ... + 282571.

It is an arithmetic number, because the mean of its divisors is an integer number (2139923520).

Almost surely, 2^28112634028 is an apocalyptic number.

It is an amenable number.

28112634028 is a deficient number, since it is larger than the sum of its proper divisors (23245530452).

28112634028 is a wasteful number, since it uses less digits than its factorization.

28112634028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131277 (or 131275 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 28112634028 in words is "twenty-eight billion, one hundred twelve million, six hundred thirty-four thousand, twenty-eight".