13181738885 has 32 divisors (see below), whose sum is σ = 19210556160. Its totient is φ = 8476388352.

The previous prime is 13181738839. The next prime is 13181738893. The reversal of 13181738885 is 58883718131.

13181738885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13181738885 - 2¹² = 13181734789 is a prime.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 124826 + ... + 204804.

It is an arithmetic number, because the mean of its divisors is an integer number (600329880).

Almost surely, 2^13181738885 is an apocalyptic number.

It is an amenable number.

13181738885 is a deficient number, since it is larger than the sum of its proper divisors (6028817275).

13181738885 is a wasteful number, since it uses less digits than its factorization.

13181738885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80285.

The product of its digits is 1290240, while the sum is 53.

The spelling of 13181738885 in words is "thirteen billion, one hundred eighty-one million, seven hundred thirty-eight thousand, eight hundred eighty-five".