68194319 has 2 divisors, whose sum is σ = 68194320. Its totient is φ = 68194318.

The previous prime is 68194303. The next prime is 68194331. The reversal of 68194319 is 91349186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68194319 - 2⁴ = 68194303 is a prime.

It is a super-2 number, since 2×68194319² = 9300930287747522, which contains 22 as substring.

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 (68194349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34097159 + 34097160.

It is an arithmetic number, because the mean of its divisors is an integer number (34097160).

Almost surely, 2^68194319 is an apocalyptic number.

68194319 is a deficient number, since it is larger than the sum of its proper divisors (1).

68194319 is an equidigital number, since it uses as much as digits as its factorization.

68194319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 41.

The square root of 68194319 is about 8257.9851658864. The cubic root of 68194319 is about 408.5539360893.

The spelling of 68194319 in words is "sixty-eight million, one hundred ninety-four thousand, three hundred nineteen".