18084339546 has 128 divisors (see below), whose sum is σ = 45674496000. Its totient is φ = 4743184320.

The previous prime is 18084339541. The next prime is 18084339571. The reversal of 18084339546 is 64593348081.

It is a super-2 number, since 2×18084339546² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18084339541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5108245 + ... + 5111783.

It is an arithmetic number, because the mean of its divisors is an integer number (356832000).

Almost surely, 2^18084339546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18084339546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22837248000).

18084339546 is an abundant number, since it is smaller than the sum of its proper divisors (27590156454).

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

18084339546 is a wasteful number, since it uses less digits than its factorization.

18084339546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3769 (or 3755 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 18084339546 in words is "eighteen billion, eighty-four million, three hundred thirty-nine thousand, five hundred forty-six".