18287441308422 has 288 divisors, whose sum is σ = 49541528644608. Its totient is φ = 4835221776000.

The previous prime is 18287441308421. The next prime is 18287441308511. The reversal of 18287441308422 is 22480314478281.

18287441308422 is a `hidden beast` number, since 1 + 8 + 2 + 87 + 4 + 4 + 130 + 8 + 422 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18287441308421) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 37500297 + ... + 37984827.

Almost surely, 2^{18287441308422} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18287441308422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24770764322304).

18287441308422 is an abundant number, since it is smaller than the sum of its proper divisors (31254087336186).

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

18287441308422 is a wasteful number, since it uses less digits than its factorization.

18287441308422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484648 (or 484634 counting only the distinct ones).

The product of its (nonzero) digits is 5505024, while the sum is 54.

The spelling of 18287441308422 in words is "eighteen trillion, two hundred eighty-seven billion, four hundred forty-one million, three hundred eight thousand, four hundred twenty-two".