3168720422489 has 2 divisors, whose sum is σ = 3168720422490. Its totient is φ = 3168720422488.

The previous prime is 3168720422471. The next prime is 3168720422503. The reversal of 3168720422489 is 9842240278613.

3168720422489 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2824483584400 + 344236838089 = 1680620^2 + 586717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3168720422489 is a prime.

It is not a weakly prime, because it can be changed into another prime (3168720422419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1584360211244 + 1584360211245.

It is an arithmetic number, because the mean of its divisors is an integer number (1584360211245).

Almost surely, 2^{3168720422489} is an apocalyptic number.

It is an amenable number.

3168720422489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3168720422489 is an equidigital number, since it uses as much as digits as its factorization.

3168720422489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9289728, while the sum is 56.

The spelling of 3168720422489 in words is "three trillion, one hundred sixty-eight billion, seven hundred twenty million, four hundred twenty-two thousand, four hundred eighty-nine".