13841722217 has 2 divisors, whose sum is σ = 13841722218. Its totient is φ = 13841722216.

The previous prime is 13841722187. The next prime is 13841722249. The reversal of 13841722217 is 71222714831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10532711641 + 3309010576 = 102629^2 + 57524^2 .

It is a cyclic number.

It is not a de Polignac number, because 13841722217 - 2⁸ = 13841721961 is a prime.

It is not a weakly prime, because it can be changed into another prime (13841722117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6920861108 + 6920861109.

It is an arithmetic number, because the mean of its divisors is an integer number (6920861109).

Almost surely, 2^13841722217 is an apocalyptic number.

It is an amenable number.

13841722217 is a deficient number, since it is larger than the sum of its proper divisors (1).

13841722217 is an equidigital number, since it uses as much as digits as its factorization.

13841722217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 38.

The spelling of 13841722217 in words is "thirteen billion, eight hundred forty-one million, seven hundred twenty-two thousand, two hundred seventeen".