68274719 has 2 divisors, whose sum is σ = 68274720. Its totient is φ = 68274718.

The previous prime is 68274709. The next prime is 68274743. The reversal of 68274719 is 91747286.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68274719 is a prime.

It is a super-2 number, since 2×68274719² = 9322874509057922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68274719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68274709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34137359 + 34137360.

It is an arithmetic number, because the mean of its divisors is an integer number (34137360).

Almost surely, 2^68274719 is an apocalyptic number.

68274719 is a deficient number, since it is larger than the sum of its proper divisors (1).

68274719 is an equidigital number, since it uses as much as digits as its factorization.

68274719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 68274719 is about 8262.8517474296. The cubic root of 68274719 is about 408.7144325276.

The spelling of 68274719 in words is "sixty-eight million, two hundred seventy-four thousand, seven hundred nineteen".