18481337888068 has 48 divisors (see below), whose sum is σ = 37440588165120. Its totient is φ = 7899171658400.

The previous prime is 18481337888063. The next prime is 18481337888119. The reversal of 18481337888068 is 86088873318481.

It is not an unprimeable number, because it can be changed into a prime (18481337888063) 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 15 ways as a sum of consecutive naturals, for example, 154704628 + ... + 154824043.

It is an arithmetic number, because the mean of its divisors is an integer number (780012253440).

Almost surely, 2^{18481337888068} is an apocalyptic number.

It is an amenable number.

18481337888068 is an abundant number, since it is smaller than the sum of its proper divisors (18959250277052).

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

18481337888068 is a wasteful number, since it uses less digits than its factorization.

18481337888068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309528768 (or 309528766 counting only the distinct ones).

The product of its (nonzero) digits is 396361728, while the sum is 73.

The spelling of 18481337888068 in words is "eighteen trillion, four hundred eighty-one billion, three hundred thirty-seven million, eight hundred eighty-eight thousand, sixty-eight".