18546854816328 has 32 divisors (see below), whose sum is σ = 49094615691360. Its totient is φ = 5818621118720.

The previous prime is 18546854816323. The next prime is 18546854816339. The reversal of 18546854816328 is 82361845864581.

It is not an unprimeable number, because it can be changed into a prime (18546854816323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22728988338 + ... + 22728989153.

It is an arithmetic number, because the mean of its divisors is an integer number (1534206740355).

Almost surely, 2^{18546854816328} is an apocalyptic number.

It is an amenable number.

18546854816328 is an abundant number, since it is smaller than the sum of its proper divisors (30547760875032).

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

18546854816328 is a wasteful number, since it uses less digits than its factorization.

18546854816328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45457977517 (or 45457977513 counting only the distinct ones).

The product of its digits is 353894400, while the sum is 69.

The spelling of 18546854816328 in words is "eighteen trillion, five hundred forty-six billion, eight hundred fifty-four million, eight hundred sixteen thousand, three hundred twenty-eight".