28297631112 has 64 divisors (see below), whose sum is σ = 76133520000. Its totient is φ = 8732144640.

The previous prime is 28297631093. The next prime is 28297631123. The reversal of 28297631112 is 21113679282.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543612 + ... + 593387.

It is an arithmetic number, because the mean of its divisors is an integer number (1189586250).

Almost surely, 2^28297631112 is an apocalyptic number.

It is an amenable number.

28297631112 is an abundant number, since it is smaller than the sum of its proper divisors (47835888888).

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

28297631112 is a wasteful number, since it uses less digits than its factorization.

28297631112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137086 (or 1137082 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The spelling of 28297631112 in words is "twenty-eight billion, two hundred ninety-seven million, six hundred thirty-one thousand, one hundred twelve".