13436236110509 has 2 divisors, whose sum is σ = 13436236110510. Its totient is φ = 13436236110508.

The previous prime is 13436236110461. The next prime is 13436236110553. The reversal of 13436236110509 is 90501163263431.

It is an a-pointer prime, because the next prime (13436236110553) can be obtained adding 13436236110509 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9617131322500 + 3819104788009 = 3101150^2 + 1954253^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13436236110509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13436236110509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13436236110569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6718118055254 + 6718118055255.

It is an arithmetic number, because the mean of its divisors is an integer number (6718118055255).

Almost surely, 2^{13436236110509} is an apocalyptic number.

It is an amenable number.

13436236110509 is a deficient number, since it is larger than the sum of its proper divisors (1).

13436236110509 is an equidigital number, since it uses as much as digits as its factorization.

13436236110509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 13436236110509 in words is "thirteen trillion, four hundred thirty-six billion, two hundred thirty-six million, one hundred ten thousand, five hundred nine".