19860068113 has 2 divisors, whose sum is σ = 19860068114. Its totient is φ = 19860068112.

The previous prime is 19860068101. The next prime is 19860068197. The reversal of 19860068113 is 31186006891.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19101451264 + 758616849 = 138208^2 + 27543^2 .

It is a cyclic number.

It is not a de Polignac number, because 19860068113 - 2³³ = 11270133521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19860068113.

It is not a weakly prime, because it can be changed into another prime (19860068413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9930034056 + 9930034057.

It is an arithmetic number, because the mean of its divisors is an integer number (9930034057).

Almost surely, 2^19860068113 is an apocalyptic number.

It is an amenable number.

19860068113 is a deficient number, since it is larger than the sum of its proper divisors (1).

19860068113 is an equidigital number, since it uses as much as digits as its factorization.

19860068113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 19860068113 in words is "nineteen billion, eight hundred sixty million, sixty-eight thousand, one hundred thirteen".