19696913699 has 2 divisors, whose sum is σ = 19696913700. Its totient is φ = 19696913698.

The previous prime is 19696913681. The next prime is 19696913707. The reversal of 19696913699 is 99631969691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19696913699 - 2³² = 15401946403 is a prime.

It is not a weakly prime, because it can be changed into another prime (19696913669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9848456849 + 9848456850.

It is an arithmetic number, because the mean of its divisors is an integer number (9848456850).

Almost surely, 2^19696913699 is an apocalyptic number.

19696913699 is a deficient number, since it is larger than the sum of its proper divisors (1).

19696913699 is an equidigital number, since it uses as much as digits as its factorization.

19696913699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38263752, while the sum is 68.

The spelling of 19696913699 in words is "nineteen billion, six hundred ninety-six million, nine hundred thirteen thousand, six hundred ninety-nine".