12968390664 has 48 divisors (see below), whose sum is σ = 35153464320. Its totient is φ = 4319013600.

The previous prime is 12968390641. The next prime is 12968390689. The reversal of 12968390664 is 46609386921.

It is a self number, because there is not a number n which added to its sum of digits gives 12968390664.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4629 + ... + 161115.

It is an arithmetic number, because the mean of its divisors is an integer number (732363840).

Almost surely, 2^12968390664 is an apocalyptic number.

It is an amenable number.

12968390664 is an abundant number, since it is smaller than the sum of its proper divisors (22185073656).

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

12968390664 is a wasteful number, since it uses less digits than its factorization.

12968390664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157650 (or 157643 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 12968390664 in words is "twelve billion, nine hundred sixty-eight million, three hundred ninety thousand, six hundred sixty-four".