18883505500 has 48 divisors (see below), whose sum is σ = 41390766144. Its totient is φ = 7526078400.

The previous prime is 18883505489. The next prime is 18883505533. The reversal of 18883505500 is 550538881.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70329 + ... + 206671.

It is an arithmetic number, because the mean of its divisors is an integer number (862307628).

Almost surely, 2^18883505500 is an apocalyptic number.

18883505500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18883505500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20695383072).

18883505500 is an abundant number, since it is smaller than the sum of its proper divisors (22507260644).

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

18883505500 is a wasteful number, since it uses less digits than its factorization.

18883505500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136639 (or 136627 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 43.

The spelling of 18883505500 in words is "eighteen billion, eight hundred eighty-three million, five hundred five thousand, five hundred".