18382229119845 has 256 divisors, whose sum is σ = 35605824307200. Its totient is φ = 9076114105344.

The previous prime is 18382229119841. The next prime is 18382229119867. The reversal of 18382229119845 is 54891192228381.

18382229119845 is a `hidden beast` number, since 1 + 8 + 382 + 2 + 29 + 1 + 198 + 45 = 666.

It is not a de Polignac number, because 18382229119845 - 2² = 18382229119841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18382229119841) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 4156052304 + ... + 4156056726.

It is an arithmetic number, because the mean of its divisors is an integer number (139085251200).

Almost surely, 2^{18382229119845} is an apocalyptic number.

18382229119845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18382229119845 is a deficient number, since it is larger than the sum of its proper divisors (17223595187355).

18382229119845 is an equidigital number, since it uses as much as digits as its factorization.

18382229119845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4828 (or 4810 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 63.

The spelling of 18382229119845 in words is "eighteen trillion, three hundred eighty-two billion, two hundred twenty-nine million, one hundred nineteen thousand, eight hundred forty-five".