11722494193 has 2 divisors, whose sum is σ = 11722494194. Its totient is φ = 11722494192.

The previous prime is 11722494191. The next prime is 11722494221. The reversal of 11722494193 is 39149422711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7619194944 + 4103299249 = 87288^2 + 64057^2 .

It is a cyclic number.

It is not a de Polignac number, because 11722494193 - 2¹ = 11722494191 is a prime.

Together with 11722494191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11722494191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5861247096 + 5861247097.

It is an arithmetic number, because the mean of its divisors is an integer number (5861247097).

Almost surely, 2^11722494193 is an apocalyptic number.

It is an amenable number.

11722494193 is a deficient number, since it is larger than the sum of its proper divisors (1).

11722494193 is an equidigital number, since it uses as much as digits as its factorization.

11722494193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The spelling of 11722494193 in words is "eleven billion, seven hundred twenty-two million, four hundred ninety-four thousand, one hundred ninety-three".