18484820352 has 128 divisors (see below), whose sum is σ = 54955519200. Its totient is φ = 6116474880.

The previous prime is 18484820351. The next prime is 18484820383. The reversal of 18484820352 is 25302848481.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 18484820298 and 18484820307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18484820351) 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 15 ways as a sum of consecutive naturals, for example, 453952 + ... + 492992.

Almost surely, 2^18484820352 is an apocalyptic number.

18484820352 is a gapful number since it is divisible by the number (12) 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 18484820352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27477759600).

18484820352 is an abundant number, since it is smaller than the sum of its proper divisors (36470698848).

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

18484820352 is a wasteful number, since it uses less digits than its factorization.

18484820352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39201 (or 39183 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 18484820352 in words is "eighteen billion, four hundred eighty-four million, eight hundred twenty thousand, three hundred fifty-two".