28285628112 has 80 divisors (see below), whose sum is σ = 92788842880. Its totient is φ = 8081607168.

The previous prime is 28285628099. The next prime is 28285628117. The reversal of 28285628112 is 21182658282.

28285628112 is a `hidden beast` number, since 2 + 8 + 2 + 8 + 5 + 628 + 1 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28285628117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4673833 + ... + 4679880.

It is an arithmetic number, because the mean of its divisors is an integer number (1159860536).

Almost surely, 2^28285628112 is an apocalyptic number.

It is an amenable number.

28285628112 is an abundant number, since it is smaller than the sum of its proper divisors (64503214768).

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

28285628112 is a wasteful number, since it uses less digits than its factorization.

28285628112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9353737 (or 9353725 counting only the distinct ones).

The product of its digits is 245760, while the sum is 45.

The spelling of 28285628112 in words is "twenty-eight billion, two hundred eighty-five million, six hundred twenty-eight thousand, one hundred twelve".