68757319 has 2 divisors, whose sum is σ = 68757320. Its totient is φ = 68757318.

The previous prime is 68757317. The next prime is 68757331. The reversal of 68757319 is 91375786.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68757319 - 2¹ = 68757317 is a prime.

It is a super-2 number, since 2×68757319² = 9455137832135522, which contains 22 as substring.

Together with 68757317, 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 (68757317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34378659 + 34378660.

It is an arithmetic number, because the mean of its divisors is an integer number (34378660).

Almost surely, 2^68757319 is an apocalyptic number.

68757319 is a deficient number, since it is larger than the sum of its proper divisors (1).

68757319 is an equidigital number, since it uses as much as digits as its factorization.

68757319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 46.

The square root of 68757319 is about 8292.0033164489. The cubic root of 68757319 is about 409.6751720266.

The spelling of 68757319 in words is "sixty-eight million, seven hundred fifty-seven thousand, three hundred nineteen".