13543802117 has 4 divisors (see below), whose sum is σ = 13874138796. Its totient is φ = 13213465440.

The previous prime is 13543802113. The next prime is 13543802143. The reversal of 13543802117 is 71120834531.

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 7415104321 + 6128697796 = 86111^2 + 78286^2 .

It is a cyclic number.

It is not a de Polignac number, because 13543802117 - 2² = 13543802113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13543802113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165168278 + ... + 165168359.

It is an arithmetic number, because the mean of its divisors is an integer number (3468534699).

Almost surely, 2^13543802117 is an apocalyptic number.

It is an amenable number.

13543802117 is a deficient number, since it is larger than the sum of its proper divisors (330336679).

13543802117 is an equidigital number, since it uses as much as digits as its factorization.

13543802117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330336678.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 13543802117 in words is "thirteen billion, five hundred forty-three million, eight hundred two thousand, one hundred seventeen".