2217904463317 has 2 divisors, whose sum is σ = 2217904463318. Its totient is φ = 2217904463316.

The previous prime is 2217904463311. The next prime is 2217904463329. The reversal of 2217904463317 is 7133644097122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2217838756081 + 65707236 = 1489241^2 + 8106^2 .

It is a cyclic number.

It is not a de Polignac number, because 2217904463317 - 2³¹ = 2215756979669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2217904463311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108952231658 + 1108952231659.

It is an arithmetic number, because the mean of its divisors is an integer number (1108952231659).

Almost surely, 2^{2217904463317} is an apocalyptic number.

It is an amenable number.

2217904463317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2217904463317 is an equidigital number, since it uses as much as digits as its factorization.

2217904463317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 2217904463317 in words is "two trillion, two hundred seventeen billion, nine hundred four million, four hundred sixty-three thousand, three hundred seventeen".