17121406199 has 2 divisors, whose sum is σ = 17121406200. Its totient is φ = 17121406198.

The previous prime is 17121406187. The next prime is 17121406201. The reversal of 17121406199 is 99160412171.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17121406199 - 2³² = 12826438903 is a prime.

It is a Sophie Germain prime.

Together with 17121406201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17121406699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8560703099 + 8560703100.

It is an arithmetic number, because the mean of its divisors is an integer number (8560703100).

Almost surely, 2^17121406199 is an apocalyptic number.

17121406199 is a deficient number, since it is larger than the sum of its proper divisors (1).

17121406199 is an equidigital number, since it uses as much as digits as its factorization.

17121406199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 41.

The spelling of 17121406199 in words is "seventeen billion, one hundred twenty-one million, four hundred six thousand, one hundred ninety-nine".