18418427750179 has 4 divisors (see below), whose sum is σ = 18418438410880. Its totient is φ = 18418417089480.

The previous prime is 18418427750159. The next prime is 18418427750227. The reversal of 18418427750179 is 97105772481481.

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 a de Polignac number, because none of the positive numbers 2^k-18418427750179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18418427750179.

It is not an unprimeable number, because it can be changed into a prime (18418427750159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2076867 + ... + 6414844.

It is an arithmetic number, because the mean of its divisors is an integer number (4604609602720).

Almost surely, 2^{18418427750179} is an apocalyptic number.

18418427750179 is a deficient number, since it is larger than the sum of its proper divisors (10660701).

18418427750179 is an equidigital number, since it uses as much as digits as its factorization.

18418427750179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10660700.

The product of its (nonzero) digits is 31610880, while the sum is 64.

The spelling of 18418427750179 in words is "eighteen trillion, four hundred eighteen billion, four hundred twenty-seven million, seven hundred fifty thousand, one hundred seventy-nine".