12281396688 has 80 divisors (see below), whose sum is σ = 38456913600. Its totient is φ = 3721633920.

The previous prime is 12281396651. The next prime is 12281396693. The reversal of 12281396688 is 88669318221.

12281396688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 1287483 + ... + 1296986.

It is an arithmetic number, because the mean of its divisors is an integer number (480711420).

Almost surely, 2^12281396688 is an apocalyptic number.

12281396688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12281396688 is an abundant number, since it is smaller than the sum of its proper divisors (26175516912).

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

12281396688 is a wasteful number, since it uses less digits than its factorization.

12281396688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584497 (or 2584485 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The spelling of 12281396688 in words is "twelve billion, two hundred eighty-one million, three hundred ninety-six thousand, six hundred eighty-eight".