12768238968646 has 8 divisors (see below), whose sum is σ = 21888409660560. Its totient is φ = 5472102415128.

The previous prime is 12768238968631. The next prime is 12768238968731. The reversal of 12768238968646 is 64686983286721.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 456008534581 + ... + 456008534608.

It is an arithmetic number, because the mean of its divisors is an integer number (2736051207570).

Almost surely, 2^{12768238968646} is an apocalyptic number.

12768238968646 is a deficient number, since it is larger than the sum of its proper divisors (9120170691914).

12768238968646 is an equidigital number, since it uses as much as digits as its factorization.

12768238968646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912017069198.

The product of its digits is 2006581248, while the sum is 76.

The spelling of 12768238968646 in words is "twelve trillion, seven hundred sixty-eight billion, two hundred thirty-eight million, nine hundred sixty-eight thousand, six hundred forty-six".