12768681843 has 12 divisors (see below), whose sum is σ = 18493103200. Its totient is φ = 8489630736.

The previous prime is 12768681841. The next prime is 12768681851. The reversal of 12768681843 is 34818686721.

It is not a de Polignac number, because 12768681843 - 2¹ = 12768681841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12768681843.

It is not an unprimeable number, because it can be changed into a prime (12768681841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1898443 + ... + 1905156.

Almost surely, 2^12768681843 is an apocalyptic number.

12768681843 is a deficient number, since it is larger than the sum of its proper divisors (5724421357).

12768681843 is a wasteful number, since it uses less digits than its factorization.

12768681843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803978 (or 3803975 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The spelling of 12768681843 in words is "twelve billion, seven hundred sixty-eight million, six hundred eighty-one thousand, eight hundred forty-three".