13104505405 has 4 divisors (see below), whose sum is σ = 15725406492. Its totient is φ = 10483604320.

The previous prime is 13104505357. The next prime is 13104505417. The reversal of 13104505405 is 50450540131.

13104505405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6071838084 + 7032667321 = 77922^2 + 83861^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13104505405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1310450536 + ... + 1310450545.

It is an arithmetic number, because the mean of its divisors is an integer number (3931351623).

Almost surely, 2^13104505405 is an apocalyptic number.

It is an amenable number.

13104505405 is a deficient number, since it is larger than the sum of its proper divisors (2620901087).

13104505405 is an equidigital number, since it uses as much as digits as its factorization.

13104505405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620901086.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 13104505405 in words is "thirteen billion, one hundred four million, five hundred five thousand, four hundred five".