18085751107 has 4 divisors (see below), whose sum is σ = 18086025960. Its totient is φ = 18085476256.

The previous prime is 18085751083. The next prime is 18085751149. The reversal of 18085751107 is 70115758081.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 18085751107 - 2⁷ = 18085750979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18085751507) 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 3 ways as a sum of consecutive naturals, for example, 26283 + ... + 191995.

It is an arithmetic number, because the mean of its divisors is an integer number (4521506490).

Almost surely, 2^18085751107 is an apocalyptic number.

18085751107 is a deficient number, since it is larger than the sum of its proper divisors (274853).

18085751107 is a wasteful number, since it uses less digits than its factorization.

18085751107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274852.

The product of its (nonzero) digits is 78400, while the sum is 43.

The spelling of 18085751107 in words is "eighteen billion, eighty-five million, seven hundred fifty-one thousand, one hundred seven".