18383818364 has 24 divisors (see below), whose sum is σ = 32444219808. Its totient is φ = 9114370560.

The previous prime is 18383818363. The next prime is 18383818393. The reversal of 18383818364 is 46381838381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18383818363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183689 + ... + 265535.

It is an arithmetic number, because the mean of its divisors is an integer number (1351842492).

Almost surely, 2^18383818364 is an apocalyptic number.

It is an amenable number.

18383818364 is a deficient number, since it is larger than the sum of its proper divisors (14060401444).

18383818364 is a wasteful number, since it uses less digits than its factorization.

18383818364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82325 (or 82323 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 53.

It can be divided in two parts, 183838 and 18364, that added together give a palindrome (202202).

The spelling of 18383818364 in words is "eighteen billion, three hundred eighty-three million, eight hundred eighteen thousand, three hundred sixty-four".