13408563841 has 4 divisors (see below), whose sum is σ = 13527223812. Its totient is φ = 13289903872.

The previous prime is 13408563821. The next prime is 13408563887. The reversal of 13408563841 is 14836580431.

13408563841 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 4306640625 + 9101923216 = 65625^2 + 95404^2 .

It is a cyclic number.

It is not a de Polignac number, because 13408563841 - 2⁵ = 13408563809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13408563811) 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 in 3 ways as a sum of consecutive naturals, for example, 59329816 + ... + 59330041.

It is an arithmetic number, because the mean of its divisors is an integer number (3381805953).

Almost surely, 2^13408563841 is an apocalyptic number.

It is an amenable number.

13408563841 is a deficient number, since it is larger than the sum of its proper divisors (118659971).

13408563841 is a wasteful number, since it uses less digits than its factorization.

13408563841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118659970.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 13408563841 in words is "thirteen billion, four hundred eight million, five hundred sixty-three thousand, eight hundred forty-one".