12068447789 has 2 divisors, whose sum is σ = 12068447790. Its totient is φ = 12068447788.

The previous prime is 12068447779. The next prime is 12068447801. The reversal of 12068447789 is 98774486021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8458480900 + 3609966889 = 91970^2 + 60083^2 .

It is a cyclic number.

It is not a de Polignac number, because 12068447789 - 2⁴ = 12068447773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12068447749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6034223894 + 6034223895.

It is an arithmetic number, because the mean of its divisors is an integer number (6034223895).

Almost surely, 2^12068447789 is an apocalyptic number.

It is an amenable number.

12068447789 is a deficient number, since it is larger than the sum of its proper divisors (1).

12068447789 is an equidigital number, since it uses as much as digits as its factorization.

12068447789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 12068447789 in words is "twelve billion, sixty-eight million, four hundred forty-seven thousand, seven hundred eighty-nine".