13818431836 has 72 divisors (see below), whose sum is σ = 27400000320. Its totient is φ = 6089973120.

The previous prime is 13818431833. The next prime is 13818431941. The reversal of 13818431836 is 63813481831.

13818431836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13818431833) 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 23 ways as a sum of consecutive naturals, for example, 2476746 + ... + 2482318.

It is an arithmetic number, because the mean of its divisors is an integer number (380555560).

Almost surely, 2^13818431836 is an apocalyptic number.

It is an amenable number.

13818431836 is a deficient number, since it is larger than the sum of its proper divisors (13581568484).

13818431836 is a wasteful number, since it uses less digits than its factorization.

13818431836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5755 (or 5742 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The spelling of 13818431836 in words is "thirteen billion, eight hundred eighteen million, four hundred thirty-one thousand, eight hundred thirty-six".