28110552828 has 24 divisors (see below), whose sum is σ = 65603876688. Its totient is φ = 9368386176.

The previous prime is 28110552739. The next prime is 28110552851. The reversal of 28110552828 is 82825501182.

It is a self number, because there is not a number n which added to its sum of digits gives 28110552828.

It is a congruent 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, 158851 + ... + 285402.

It is an arithmetic number, because the mean of its divisors is an integer number (2733494862).

Almost surely, 2^28110552828 is an apocalyptic number.

It is an amenable number.

28110552828 is an abundant number, since it is smaller than the sum of its proper divisors (37493323860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28110552828 is a wasteful number, since it uses less digits than its factorization.

28110552828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449533 (or 449531 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 42.

The spelling of 28110552828 in words is "twenty-eight billion, one hundred ten million, five hundred fifty-two thousand, eight hundred twenty-eight".