7665274217 has 2 divisors, whose sum is σ = 7665274218. Its totient is φ = 7665274216.

The previous prime is 7665274181. The next prime is 7665274231. The reversal of 7665274217 is 7124725667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5981320921 + 1683953296 = 77339^2 + 41036^2 .

It is a cyclic number.

It is not a de Polignac number, because 7665274217 - 2¹⁴ = 7665257833 is a prime.

It is not a weakly prime, because it can be changed into another prime (7665274247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832637108 + 3832637109.

It is an arithmetic number, because the mean of its divisors is an integer number (3832637109).

Almost surely, 2^7665274217 is an apocalyptic number.

It is an amenable number.

7665274217 is a deficient number, since it is larger than the sum of its proper divisors (1).

7665274217 is an equidigital number, since it uses as much as digits as its factorization.

7665274217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 987840, while the sum is 47.

The square root of 7665274217 is about 87551.5517680869. The cubic root of 7665274217 is about 1971.7078490415.

The spelling of 7665274217 in words is "seven billion, six hundred sixty-five million, two hundred seventy-four thousand, two hundred seventeen".