18183820182 has 16 divisors (see below), whose sum is σ = 39673789632. Its totient is φ = 5510248520.

The previous prime is 18183820141. The next prime is 18183820183. The reversal of 18183820182 is 28102838181.

It is a super-2 number, since 2×18183820182² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18183820183) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 137756148 + ... + 137756279.

It is an arithmetic number, because the mean of its divisors is an integer number (2479611852).

Almost surely, 2^18183820182 is an apocalyptic number.

18183820182 is an abundant number, since it is smaller than the sum of its proper divisors (21489969450).

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

18183820182 is a wasteful number, since it uses less digits than its factorization.

18183820182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275512443.

The product of its (nonzero) digits is 49152, while the sum is 42.

The spelling of 18183820182 in words is "eighteen billion, one hundred eighty-three million, eight hundred twenty thousand, one hundred eighty-two".