28875903108 has 72 divisors (see below), whose sum is σ = 73229256576. Its totient is φ = 8851939200.

The previous prime is 28875903107. The next prime is 28875903167. The reversal of 28875903108 is 80130957882.

It is not an unprimeable number, because it can be changed into a prime (28875903107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 523318 + ... + 575858.

It is an arithmetic number, because the mean of its divisors is an integer number (1017073008).

Almost surely, 2^28875903108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28875903108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36614628288).

28875903108 is an abundant number, since it is smaller than the sum of its proper divisors (44353353468).

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

28875903108 is a wasteful number, since it uses less digits than its factorization.

28875903108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52845 (or 52830 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 28875903108 in words is "twenty-eight billion, eight hundred seventy-five million, nine hundred three thousand, one hundred eight".