12688968043 has 2 divisors, whose sum is σ = 12688968044. Its totient is φ = 12688968042.

The previous prime is 12688968001. The next prime is 12688968161. The reversal of 12688968043 is 34086988621.

12688968043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12688968043 - 2⁹ = 12688967531 is a prime.

It is a super-2 number, since 2×12688968043² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12688968343) by changing a digit.

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 as a sum of consecutive naturals, namely, 6344484021 + 6344484022.

It is an arithmetic number, because the mean of its divisors is an integer number (6344484022).

Almost surely, 2^12688968043 is an apocalyptic number.

12688968043 is a deficient number, since it is larger than the sum of its proper divisors (1).

12688968043 is an equidigital number, since it uses as much as digits as its factorization.

12688968043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3981312, while the sum is 55.

The spelling of 12688968043 in words is "twelve billion, six hundred eighty-eight million, nine hundred sixty-eight thousand, forty-three".