13726694563 has 2 divisors, whose sum is σ = 13726694564. Its totient is φ = 13726694562.

The previous prime is 13726694521. The next prime is 13726694687. The reversal of 13726694563 is 36549662731.

It is a happy number.

13726694563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13726694563 - 2¹³ = 13726686371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13726694563.

It is not a weakly prime, because it can be changed into another prime (13726692563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6863347281 + 6863347282.

It is an arithmetic number, because the mean of its divisors is an integer number (6863347282).

Almost surely, 2^13726694563 is an apocalyptic number.

13726694563 is a deficient number, since it is larger than the sum of its proper divisors (1).

13726694563 is an equidigital number, since it uses as much as digits as its factorization.

13726694563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 52.

The spelling of 13726694563 in words is "thirteen billion, seven hundred twenty-six million, six hundred ninety-four thousand, five hundred sixty-three".