18363650008 has 16 divisors (see below), whose sum is σ = 37562011560. Its totient is φ = 8347113600.

The previous prime is 18363650003. The next prime is 18363650029. The reversal of 18363650008 is 80005636381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18363650003) 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 3 ways as a sum of consecutive naturals, for example, 104338833 + ... + 104339008.

Almost surely, 2^18363650008 is an apocalyptic number.

It is an amenable number.

18363650008 is an abundant number, since it is smaller than the sum of its proper divisors (19198361552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18363650008 is a wasteful number, since it uses less digits than its factorization.

18363650008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208677858 (or 208677854 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 18363650008 in words is "eighteen billion, three hundred sixty-three million, six hundred fifty thousand, eight".