18282855147840 has 1008 divisors, whose sum is σ = 69761364566400. Its totient is φ = 4388383555584.

The previous prime is 18282855147839. The next prime is 18282855147847. The reversal of 18282855147840 is 4874155828281.

It is a happy number.

18282855147840 is a `hidden beast` number, since 1 + 8 + 2 + 8 + 2 + 8 + 5 + 514 + 78 + 40 = 666.

It is a super-3 number, since 3×18282855147840³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18282855147847) 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, 2582685421 + ... + 2582692499.

Almost surely, 2^{18282855147840} is an apocalyptic number.

18282855147840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18282855147840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34880682283200).

18282855147840 is an abundant number, since it is smaller than the sum of its proper divisors (51478509418560).

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

18282855147840 is a wasteful number, since it uses less digits than its factorization.

18282855147840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7272 (or 7242 counting only the distinct ones).

The product of its (nonzero) digits is 45875200, while the sum is 63.

The spelling of 18282855147840 in words is "eighteen trillion, two hundred eighty-two billion, eight hundred fifty-five million, one hundred forty-seven thousand, eight hundred forty".