7668454217 has 2 divisors, whose sum is σ = 7668454218. Its totient is φ = 7668454216.

The previous prime is 7668454193. The next prime is 7668454237. The reversal of 7668454217 is 7124548667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5431542601 + 2236911616 = 73699^2 + 47296^2 .

It is a cyclic number.

It is not a de Polignac number, because 7668454217 - 2¹⁸ = 7668192073 is a prime.

It is not a weakly prime, because it can be changed into another prime (7668454237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3834227108 + 3834227109.

It is an arithmetic number, because the mean of its divisors is an integer number (3834227109).

Almost surely, 2^7668454217 is an apocalyptic number.

It is an amenable number.

7668454217 is a deficient number, since it is larger than the sum of its proper divisors (1).

7668454217 is an equidigital number, since it uses as much as digits as its factorization.

7668454217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 50.

The square root of 7668454217 is about 87569.7106138875. The cubic root of 7668454217 is about 1971.9804709084.

The spelling of 7668454217 in words is "seven billion, six hundred sixty-eight million, four hundred fifty-four thousand, two hundred seventeen".