19679205795199 has 2 divisors, whose sum is σ = 19679205795200. Its totient is φ = 19679205795198.

The previous prime is 19679205795163. The next prime is 19679205795203. The reversal of 19679205795199 is 99159750297691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19679205795199 - 2⁷ = 19679205795071 is a prime.

It is a super-2 number, since 2×19679205795199² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19679205705199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9839602897599 + 9839602897600.

It is an arithmetic number, because the mean of its divisors is an integer number (9839602897600).

Almost surely, 2^{19679205795199} is an apocalyptic number.

19679205795199 is a deficient number, since it is larger than the sum of its proper divisors (1).

19679205795199 is an equidigital number, since it uses as much as digits as its factorization.

19679205795199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 868020300, while the sum is 79.

The spelling of 19679205795199 in words is "nineteen trillion, six hundred seventy-nine billion, two hundred five million, seven hundred ninety-five thousand, one hundred ninety-nine".