18084619344 has 120 divisors (see below), whose sum is σ = 51638562976. Its totient is φ = 5449593600.

The previous prime is 18084619313. The next prime is 18084619381. The reversal of 18084619344 is 44391648081.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 18084619293 and 18084619302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1042647 + ... + 1059849.

Almost surely, 2^18084619344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18084619344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25819281488).

18084619344 is an abundant number, since it is smaller than the sum of its proper divisors (33553943632).

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

18084619344 is a wasteful number, since it uses less digits than its factorization.

18084619344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17417 (or 17400 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 18084619344 in words is "eighteen billion, eighty-four million, six hundred nineteen thousand, three hundred forty-four".