18181850682 has 16 divisors (see below), whose sum is σ = 36375533280. Its totient is φ = 6058644912.

The previous prime is 18181850647. The next prime is 18181850683. The reversal of 18181850682 is 28605818181.

It is not an unprimeable number, because it can be changed into a prime (18181850683) by changing a digit.

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, 472957 + ... + 509952.

It is an arithmetic number, because the mean of its divisors is an integer number (2273470830).

Almost surely, 2^18181850682 is an apocalyptic number.

18181850682 is an abundant number, since it is smaller than the sum of its proper divisors (18193682598).

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

18181850682 is a wasteful number, since it uses less digits than its factorization.

18181850682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985997.

The product of its (nonzero) digits is 245760, while the sum is 48.

The spelling of 18181850682 in words is "eighteen billion, one hundred eighty-one million, eight hundred fifty thousand, six hundred eighty-two".