18382011091 has 8 divisors (see below), whose sum is σ = 18424065168. Its totient is φ = 18339984000.

The previous prime is 18382011077. The next prime is 18382011101. The reversal of 18382011091 is 19011028381.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18382011091 - 2²³ = 18373622483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18382011191) 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, 2017456 + ... + 2026546.

It is an arithmetic number, because the mean of its divisors is an integer number (2303008146).

Almost surely, 2^18382011091 is an apocalyptic number.

18382011091 is a deficient number, since it is larger than the sum of its proper divisors (42054077).

18382011091 is an equidigital number, since it uses as much as digits as its factorization.

18382011091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13493.

The product of its (nonzero) digits is 3456, while the sum is 34.

The spelling of 18382011091 in words is "eighteen billion, three hundred eighty-two million, eleven thousand, ninety-one".