9317216578673 has 2 divisors, whose sum is σ = 9317216578674. Its totient is φ = 9317216578672.

The previous prime is 9317216578669. The next prime is 9317216578697. The reversal of 9317216578673 is 3768756127139.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8095800377344 + 1221416201329 = 2845312^2 + 1105177^2 .

It is an emirp because it is prime and its reverse (3768756127139) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9317216578673 - 2² = 9317216578669 is a prime.

It is not a weakly prime, because it can be changed into another prime (9317216578643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4658608289336 + 4658608289337.

It is an arithmetic number, because the mean of its divisors is an integer number (4658608289337).

Almost surely, 2^{9317216578673} is an apocalyptic number.

It is an amenable number.

9317216578673 is a deficient number, since it is larger than the sum of its proper divisors (1).

9317216578673 is an equidigital number, since it uses as much as digits as its factorization.

9317216578673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80015040, while the sum is 65.

The spelling of 9317216578673 in words is "nine trillion, three hundred seventeen billion, two hundred sixteen million, five hundred seventy-eight thousand, six hundred seventy-three".