28112288612 has 48 divisors (see below), whose sum is σ = 53699526720. Its totient is φ = 12826801152.

The previous prime is 28112288593. The next prime is 28112288639. The reversal of 28112288612 is 21688221182.

It is a self number, because there is not a number n which added to its sum of digits gives 28112288612.

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, 244883 + ... + 340869.

It is an arithmetic number, because the mean of its divisors is an integer number (1118740140).

Almost surely, 2^28112288612 is an apocalyptic number.

It is an amenable number.

28112288612 is a deficient number, since it is larger than the sum of its proper divisors (25587238108).

28112288612 is a wasteful number, since it uses less digits than its factorization.

28112288612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96140 (or 96138 counting only the distinct ones).

The product of its digits is 49152, while the sum is 41.

The spelling of 28112288612 in words is "twenty-eight billion, one hundred twelve million, two hundred eighty-eight thousand, six hundred twelve".