18382345636 has 12 divisors (see below), whose sum is σ = 32176144000. Its totient is φ = 9189161640.

The previous prime is 18382345537. The next prime is 18382345643. The reversal of 18382345636 is 63654328381.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18382345636.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482136 + ... + 518863.

Almost surely, 2^18382345636 is an apocalyptic number.

It is an amenable number.

18382345636 is a deficient number, since it is larger than the sum of its proper divisors (13793798364).

18382345636 is a wasteful number, since it uses less digits than its factorization.

18382345636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005594 (or 1005592 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 49.

The spelling of 18382345636 in words is "eighteen billion, three hundred eighty-two million, three hundred forty-five thousand, six hundred thirty-six".