18284545729204 has 96 divisors (see below), whose sum is σ = 32871484800000. Its totient is φ = 8897252474880.

The previous prime is 18284545729193. The next prime is 18284545729217. The reversal of 18284545729204 is 40292754548281.

It is a super-2 number, since 2×18284545729204² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4164093849 + ... + 4164098239.

It is an arithmetic number, because the mean of its divisors is an integer number (342411300000).

Almost surely, 2^{18284545729204} is an apocalyptic number.

It is an amenable number.

18284545729204 is a deficient number, since it is larger than the sum of its proper divisors (14586939070796).

18284545729204 is a wasteful number, since it uses less digits than its factorization.

18284545729204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5281 (or 5279 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 61.

The spelling of 18284545729204 in words is "eighteen trillion, two hundred eighty-four billion, five hundred forty-five million, seven hundred twenty-nine thousand, two hundred four".