28275965112 has 64 divisors (see below), whose sum is σ = 72369982080. Its totient is φ = 9201532032.

The previous prime is 28275965083. The next prime is 28275965153. The reversal of 28275965112 is 21156957282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2509363 + ... + 2520605.

It is an arithmetic number, because the mean of its divisors is an integer number (1130780970).

Almost surely, 2^28275965112 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 28275965112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36184991040).

28275965112 is an abundant number, since it is smaller than the sum of its proper divisors (44094016968).

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

28275965112 is a wasteful number, since it uses less digits than its factorization.

28275965112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13732 (or 13728 counting only the distinct ones).

The product of its digits is 604800, while the sum is 48.

The spelling of 28275965112 in words is "twenty-eight billion, two hundred seventy-five million, nine hundred sixty-five thousand, one hundred twelve".