28110443872 has 72 divisors (see below), whose sum is σ = 66454758720. Its totient is φ = 11658689280.

The previous prime is 28110443869. The next prime is 28110443873. The reversal of 28110443872 is 27834401182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28110443873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240547 + ... + 337762.

It is an arithmetic number, because the mean of its divisors is an integer number (922982760).

Almost surely, 2^28110443872 is an apocalyptic number.

It is an amenable number.

28110443872 is an abundant number, since it is smaller than the sum of its proper divisors (38344314848).

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

28110443872 is a wasteful number, since it uses less digits than its factorization.

28110443872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578364 (or 578349 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 28110443872 in words is "twenty-eight billion, one hundred ten million, four hundred forty-three thousand, eight hundred seventy-two".