8320863336217 has 2 divisors, whose sum is σ = 8320863336218. Its totient is φ = 8320863336216.

The previous prime is 8320863336091. The next prime is 8320863336221. The reversal of 8320863336217 is 7126333680238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7914156130521 + 406707205696 = 2813211^2 + 637736^2 .

It is a cyclic number.

It is not a de Polignac number, because 8320863336217 - 2³⁹ = 7771107522329 is a prime.

It is not a weakly prime, because it can be changed into another prime (8320863336817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4160431668108 + 4160431668109.

It is an arithmetic number, because the mean of its divisors is an integer number (4160431668109).

Almost surely, 2^{8320863336217} is an apocalyptic number.

It is an amenable number.

8320863336217 is a deficient number, since it is larger than the sum of its proper divisors (1).

8320863336217 is an equidigital number, since it uses as much as digits as its factorization.

8320863336217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 8320863336217 in words is "eight trillion, three hundred twenty billion, eight hundred sixty-three million, three hundred thirty-six thousand, two hundred seventeen".