18442141589493 has 12 divisors (see below), whose sum is σ = 26655735993120. Its totient is φ = 12286874737896.

The previous prime is 18442141589467. The next prime is 18442141589507. The reversal of 18442141589493 is 39498514124481.

18442141589493 is a `hidden beast` number, since 1 + 8 + 4 + 4 + 2 + 1 + 4 + 1 + 589 + 49 + 3 = 666.

It is not a de Polignac number, because 18442141589493 - 2¹² = 18442141585397 is a prime.

It is a super-2 number, since 2×18442141589493² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18442141589493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18442141589453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 657178671 + ... + 657206732.

It is an arithmetic number, because the mean of its divisors is an integer number (2221311332760).

Almost surely, 2^{18442141589493} is an apocalyptic number.

It is an amenable number.

18442141589493 is a deficient number, since it is larger than the sum of its proper divisors (8213594403627).

18442141589493 is a wasteful number, since it uses less digits than its factorization.

18442141589493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314386968 (or 1314386965 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 63.

The spelling of 18442141589493 in words is "eighteen trillion, four hundred forty-two billion, one hundred forty-one million, five hundred eighty-nine thousand, four hundred ninety-three".