13722611797 has 2 divisors, whose sum is σ = 13722611798. Its totient is φ = 13722611796.

The previous prime is 13722611731. The next prime is 13722611839. The reversal of 13722611797 is 79711622731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13514992516 + 207619281 = 116254^2 + 14409^2 .

It is a cyclic number.

It is not a de Polignac number, because 13722611797 - 2¹¹ = 13722609749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13722611897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6861305898 + 6861305899.

It is an arithmetic number, because the mean of its divisors is an integer number (6861305899).

Almost surely, 2^13722611797 is an apocalyptic number.

It is an amenable number.

13722611797 is a deficient number, since it is larger than the sum of its proper divisors (1).

13722611797 is an equidigital number, since it uses as much as digits as its factorization.

13722611797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 46.

The spelling of 13722611797 in words is "thirteen billion, seven hundred twenty-two million, six hundred eleven thousand, seven hundred ninety-seven".