13436581603253 has 2 divisors, whose sum is σ = 13436581603254. Its totient is φ = 13436581603252.

The previous prime is 13436581603127. The next prime is 13436581603283. The reversal of 13436581603253 is 35230618563431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9603416727844 + 3833164875409 = 3098938^2 + 1957847^2 .

It is a cyclic number.

It is not a de Polignac number, because 13436581603253 - 2³⁰ = 13435507861429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13436581603283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6718290801626 + 6718290801627.

It is an arithmetic number, because the mean of its divisors is an integer number (6718290801627).

Almost surely, 2^{13436581603253} is an apocalyptic number.

It is an amenable number.

13436581603253 is a deficient number, since it is larger than the sum of its proper divisors (1).

13436581603253 is an equidigital number, since it uses as much as digits as its factorization.

13436581603253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 50.

The spelling of 13436581603253 in words is "thirteen trillion, four hundred thirty-six billion, five hundred eighty-one million, six hundred three thousand, two hundred fifty-three".