181836383822 has 16 divisors (see below), whose sum is σ = 273813426432. Its totient is φ = 90565899960.

The previous prime is 181836383819. The next prime is 181836383843. The reversal of 181836383822 is 228383638181.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390233 + ... + 718299.

It is an arithmetic number, because the mean of its divisors is an integer number (17113339152).

Almost surely, 2^181836383822 is an apocalyptic number.

181836383822 is a deficient number, since it is larger than the sum of its proper divisors (91977042610).

181836383822 is a wasteful number, since it uses less digits than its factorization.

181836383822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329143.

The product of its digits is 2654208, while the sum is 53.

The spelling of 181836383822 in words is "one hundred eighty-one billion, eight hundred thirty-six million, three hundred eighty-three thousand, eight hundred twenty-two".