13136891683693 has 2 divisors, whose sum is σ = 13136891683694. Its totient is φ = 13136891683692.

The previous prime is 13136891683681. The next prime is 13136891683717. The reversal of 13136891683693 is 39638619863131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10897373447689 + 2239518236004 = 3301117^2 + 1496502^2 .

It is an emirp because it is prime and its reverse (39638619863131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13136891683693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13136891683673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6568445841846 + 6568445841847.

It is an arithmetic number, because the mean of its divisors is an integer number (6568445841847).

Almost surely, 2^{13136891683693} is an apocalyptic number.

It is an amenable number.

13136891683693 is a deficient number, since it is larger than the sum of its proper divisors (1).

13136891683693 is an equidigital number, since it uses as much as digits as its factorization.

13136891683693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90699264, while the sum is 67.

The spelling of 13136891683693 in words is "thirteen trillion, one hundred thirty-six billion, eight hundred ninety-one million, six hundred eighty-three thousand, six hundred ninety-three".