13684069081 has 2 divisors, whose sum is σ = 13684069082. Its totient is φ = 13684069080.

The previous prime is 13684069037. The next prime is 13684069111. The reversal of 13684069081 is 18096048631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12530787481 + 1153281600 = 111941^2 + 33960^2 .

It is an emirp because it is prime and its reverse (18096048631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13684069081 is a prime.

It is a super-2 number, since 2×13684069081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13684069001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6842034540 + 6842034541.

It is an arithmetic number, because the mean of its divisors is an integer number (6842034541).

Almost surely, 2^13684069081 is an apocalyptic number.

It is an amenable number.

13684069081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13684069081 is an equidigital number, since it uses as much as digits as its factorization.

13684069081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 13684069081 in words is "thirteen billion, six hundred eighty-four million, sixty-nine thousand, eighty-one".