18383865080 has 48 divisors (see below), whose sum is σ = 48116958120. Its totient is φ = 6303038784.

The previous prime is 18383865079. The next prime is 18383865089. The reversal of 18383865080 is 8056838381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18383865089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4687802 + ... + 4691721.

Almost surely, 2^18383865080 is an apocalyptic number.

18383865080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18383865080 is an abundant number, since it is smaller than the sum of its proper divisors (29733093040).

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

18383865080 is a wasteful number, since it uses less digits than its factorization.

18383865080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9379548 (or 9379537 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 18383865080 in words is "eighteen billion, three hundred eighty-three million, eight hundred sixty-five thousand, eighty".