9722974091737 has 2 divisors, whose sum is σ = 9722974091738. Its totient is φ = 9722974091736.

The previous prime is 9722974091731. The next prime is 9722974091827. The reversal of 9722974091737 is 7371904792279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6825203275081 + 2897770816656 = 2612509^2 + 1702284^2 .

It is a cyclic number.

It is not a de Polignac number, because 9722974091737 - 2³ = 9722974091729 is a prime.

It is not a weakly prime, because it can be changed into another prime (9722974091731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4861487045868 + 4861487045869.

It is an arithmetic number, because the mean of its divisors is an integer number (4861487045869).

Almost surely, 2^{9722974091737} is an apocalyptic number.

It is an amenable number.

9722974091737 is a deficient number, since it is larger than the sum of its proper divisors (1).

9722974091737 is an equidigital number, since it uses as much as digits as its factorization.

9722974091737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84015792, while the sum is 67.

The spelling of 9722974091737 in words is "nine trillion, seven hundred twenty-two billion, nine hundred seventy-four million, ninety-one thousand, seven hundred thirty-seven".