9816682238173 has 2 divisors, whose sum is σ = 9816682238174. Its totient is φ = 9816682238172.

The previous prime is 9816682238147. The next prime is 9816682238189. The reversal of 9816682238173 is 3718322866189.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9666117285444 + 150564952729 = 3109038^2 + 388027^2 .

It is an emirp because it is prime and its reverse (3718322866189) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9816682238173 is a prime.

It is a super-2 number, since 2×9816682238173² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9816682208173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4908341119086 + 4908341119087.

It is an arithmetic number, because the mean of its divisors is an integer number (4908341119087).

Almost surely, 2^{9816682238173} is an apocalyptic number.

It is an amenable number.

9816682238173 is a deficient number, since it is larger than the sum of its proper divisors (1).

9816682238173 is an equidigital number, since it uses as much as digits as its factorization.

9816682238173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41803776, while the sum is 64.

The spelling of 9816682238173 in words is "nine trillion, eight hundred sixteen billion, six hundred eighty-two million, two hundred thirty-eight thousand, one hundred seventy-three".