12968295920 has 20 divisors (see below), whose sum is σ = 30151288200. Its totient is φ = 5187318336.

The previous prime is 12968295917. The next prime is 12968295947. The reversal of 12968295920 is 2959286921.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81051770 + ... + 81051929.

It is an arithmetic number, because the mean of its divisors is an integer number (1507564410).

Almost surely, 2^12968295920 is an apocalyptic number.

12968295920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12968295920 is an abundant number, since it is smaller than the sum of its proper divisors (17182992280).

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

12968295920 is a wasteful number, since it uses less digits than its factorization.

12968295920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162103712 (or 162103706 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 12968295920 in words is "twelve billion, nine hundred sixty-eight million, two hundred ninety-five thousand, nine hundred twenty".