9363574216981 has 2 divisors, whose sum is σ = 9363574216982. Its totient is φ = 9363574216980.

The previous prime is 9363574216957. The next prime is 9363574216999. The reversal of 9363574216981 is 1896124753639.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7714895104900 + 1648679112081 = 2777570^2 + 1284009^2 .

It is a cyclic number.

It is not a de Polignac number, because 9363574216981 - 2³¹ = 9361426733333 is a prime.

It is a super-2 number, since 2×9363574216981² (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 (9363574246981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4681787108490 + 4681787108491.

It is an arithmetic number, because the mean of its divisors is an integer number (4681787108491).

Almost surely, 2^{9363574216981} is an apocalyptic number.

It is an amenable number.

9363574216981 is a deficient number, since it is larger than the sum of its proper divisors (1).

9363574216981 is an equidigital number, since it uses as much as digits as its factorization.

9363574216981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58786560, while the sum is 64.

The spelling of 9363574216981 in words is "nine trillion, three hundred sixty-three billion, five hundred seventy-four million, two hundred sixteen thousand, nine hundred eighty-one".