18120884108 has 24 divisors (see below), whose sum is σ = 31937740800. Its totient is φ = 8995903488.

The previous prime is 18120884107. The next prime is 18120884141. The reversal of 18120884108 is 80148802181.

It is not an unprimeable number, because it can be changed into a prime (18120884107) 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, 874613 + ... + 895091.

It is an arithmetic number, because the mean of its divisors is an integer number (1330739200).

Almost surely, 2^18120884108 is an apocalyptic number.

It is an amenable number.

18120884108 is a deficient number, since it is larger than the sum of its proper divisors (13816856692).

18120884108 is a wasteful number, since it uses less digits than its factorization.

18120884108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22049 (or 22047 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 41.

The spelling of 18120884108 in words is "eighteen billion, one hundred twenty million, eight hundred eighty-four thousand, one hundred eight".