13420690091069 has 2 divisors, whose sum is σ = 13420690091070. Its totient is φ = 13420690091068.

The previous prime is 13420690091059. The next prime is 13420690091089. The reversal of 13420690091069 is 96019009602431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12648251247844 + 772438843225 = 3556438^2 + 878885^2 .

It is an emirp because it is prime and its reverse (96019009602431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13420690091069 - 2³² = 13416395123773 is a prime.

It is a super-2 number, since 2×13420690091069² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13420690091059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710345045534 + 6710345045535.

It is an arithmetic number, because the mean of its divisors is an integer number (6710345045535).

Almost surely, 2^{13420690091069} is an apocalyptic number.

It is an amenable number.

13420690091069 is a deficient number, since it is larger than the sum of its proper divisors (1).

13420690091069 is an equidigital number, since it uses as much as digits as its factorization.

13420690091069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 50.

The spelling of 13420690091069 in words is "thirteen trillion, four hundred twenty billion, six hundred ninety million, ninety-one thousand, sixty-nine".