68495719 has 2 divisors, whose sum is σ = 68495720. Its totient is φ = 68495718.

The previous prime is 68495711. The next prime is 68495723. The reversal of 68495719 is 91759486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68495719 - 2³ = 68495711 is a prime.

It is a super-3 number, since 3×68495719³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68495711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34247859 + 34247860.

It is an arithmetic number, because the mean of its divisors is an integer number (34247860).

Almost surely, 2^68495719 is an apocalyptic number.

68495719 is a deficient number, since it is larger than the sum of its proper divisors (1).

68495719 is an equidigital number, since it uses as much as digits as its factorization.

68495719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The square root of 68495719 is about 8276.2140499144. The cubic root of 68495719 is about 409.1549499279.

The spelling of 68495719 in words is "sixty-eight million, four hundred ninety-five thousand, seven hundred nineteen".