67946069717 has 2 divisors, whose sum is σ = 67946069718. Its totient is φ = 67946069716.

The previous prime is 67946069699. The next prime is 67946069729. The reversal of 67946069717 is 71796064976.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67011605956 + 934463761 = 258866^2 + 30569^2 .

It is a cyclic number.

It is not a de Polignac number, because 67946069717 - 2²⁰ = 67945021141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67946069717.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67946069747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33973034858 + 33973034859.

It is an arithmetic number, because the mean of its divisors is an integer number (33973034859).

Almost surely, 2^67946069717 is an apocalyptic number.

It is an amenable number.

67946069717 is a deficient number, since it is larger than the sum of its proper divisors (1).

67946069717 is an equidigital number, since it uses as much as digits as its factorization.

67946069717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24004512, while the sum is 62.

The spelling of 67946069717 in words is "sixty-seven billion, nine hundred forty-six million, sixty-nine thousand, seven hundred seventeen".