68342202191 has 2 divisors, whose sum is σ = 68342202192. Its totient is φ = 68342202190.

The previous prime is 68342202151. The next prime is 68342202211. The reversal of 68342202191 is 19120224386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68342202191 - 2¹⁰ = 68342201167 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68342202101) 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, 34171101095 + 34171101096.

It is an arithmetic number, because the mean of its divisors is an integer number (34171101096).

Almost surely, 2^68342202191 is an apocalyptic number.

68342202191 is a deficient number, since it is larger than the sum of its proper divisors (1).

68342202191 is an equidigital number, since it uses as much as digits as its factorization.

68342202191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 68342202191 in words is "sixty-eight billion, three hundred forty-two million, two hundred two thousand, one hundred ninety-one".