13668883369 has 2 divisors, whose sum is σ = 13668883370. Its totient is φ = 13668883368.

The previous prime is 13668883357. The next prime is 13668883411. The reversal of 13668883369 is 96338886631.

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., 7551610000 + 6117273369 = 86900^2 + 78213^2 .

It is a cyclic number.

It is not a de Polignac number, because 13668883369 - 2¹¹ = 13668881321 is a prime.

It is a super-2 number, since 2×13668883369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13668886369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6834441684 + 6834441685.

It is an arithmetic number, because the mean of its divisors is an integer number (6834441685).

Almost surely, 2^13668883369 is an apocalyptic number.

It is an amenable number.

13668883369 is a deficient number, since it is larger than the sum of its proper divisors (1).

13668883369 is an equidigital number, since it uses as much as digits as its factorization.

13668883369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26873856, while the sum is 61.

The spelling of 13668883369 in words is "thirteen billion, six hundred sixty-eight million, eight hundred eighty-three thousand, three hundred sixty-nine".