9317216578643 has 2 divisors, whose sum is σ = 9317216578644. Its totient is φ = 9317216578642.

The previous prime is 9317216578639. The next prime is 9317216578669. The reversal of 9317216578643 is 3468756127139.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9317216578643 - 2² = 9317216578639 is a prime.

It is not a weakly prime, because it can be changed into another prime (9317216578673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4658608289321 + 4658608289322.

It is an arithmetic number, because the mean of its divisors is an integer number (4658608289322).

Almost surely, 2^{9317216578643} is an apocalyptic number.

9317216578643 is a deficient number, since it is larger than the sum of its proper divisors (1).

9317216578643 is an equidigital number, since it uses as much as digits as its factorization.

9317216578643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45722880, while the sum is 62.

The spelling of 9317216578643 in words is "nine trillion, three hundred seventeen billion, two hundred sixteen million, five hundred seventy-eight thousand, six hundred forty-three".