18365181882 has 48 divisors (see below), whose sum is σ = 38467676928. Its totient is φ = 5838073920.

The previous prime is 18365181881. The next prime is 18365181941. The reversal of 18365181882 is 28818156381.

It is not an unprimeable number, because it can be changed into a prime (18365181881) 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 23 ways as a sum of consecutive naturals, for example, 15790633 + ... + 15791795.

It is an arithmetic number, because the mean of its divisors is an integer number (801409936).

Almost surely, 2^18365181882 is an apocalyptic number.

18365181882 is an abundant number, since it is smaller than the sum of its proper divisors (20102495046).

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

18365181882 is an equidigital number, since it uses as much as digits as its factorization.

18365181882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435 (or 1272 counting only the distinct ones).

The product of its digits is 737280, while the sum is 51.

The spelling of 18365181882 in words is "eighteen billion, three hundred sixty-five million, one hundred eighty-one thousand, eight hundred eighty-two".