18483344880 has 960 divisors, whose sum is σ = 81219801600. Its totient is φ = 3413975040.

The previous prime is 18483344819. The next prime is 18483344941. The reversal of 18483344880 is 8844338481.

It is an interprime number because it is at equal distance from previous prime (18483344819) and next prime (18483344941).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 48768531 + ... + 48768909.

It is an arithmetic number, because the mean of its divisors is an integer number (84603960).

Almost surely, 2^18483344880 is an apocalyptic number.

18483344880 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 18483344880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40609900800).

18483344880 is an abundant number, since it is smaller than the sum of its proper divisors (62736456720).

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

18483344880 is a wasteful number, since it uses less digits than its factorization.

18483344880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 51.

It can be divided in two parts, 18483 and 344880, that added together give a palindrome (363363).

The spelling of 18483344880 in words is "eighteen billion, four hundred eighty-three million, three hundred forty-four thousand, eight hundred eighty".