181049283198 has 192 divisors, whose sum is σ = 491464396800. Its totient is φ = 47003120640.

The previous prime is 181049283143. The next prime is 181049283209. The reversal of 181049283198 is 891382940181.

It is a happy number.

181049283198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 8375388 + ... + 8396976.

It is an arithmetic number, because the mean of its divisors is an integer number (2559710400).

Almost surely, 2^181049283198 is an apocalyptic number.

181049283198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 181049283198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245732198400).

181049283198 is an abundant number, since it is smaller than the sum of its proper divisors (310415113602).

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

181049283198 is a wasteful number, since it uses less digits than its factorization.

181049283198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21767 (or 21764 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 54.

The spelling of 181049283198 in words is "one hundred eighty-one billion, forty-nine million, two hundred eighty-three thousand, one hundred ninety-eight".