18006270041 has 4 divisors (see below), whose sum is σ = 18006540084. Its totient is φ = 18006000000.

The previous prime is 18006270017. The next prime is 18006270043. The reversal of 18006270041 is 14007260081.

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 can be written as a sum of positive squares in 2 ways, for example, as 2439964816 + 15566305225 = 49396^2 + 124765^2 .

It is a cyclic number.

It is not a de Polignac number, because 18006270041 - 2⁶ = 18006269977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18006269986 and 18006270013.

It is not an unprimeable number, because it can be changed into a prime (18006270043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45041 + ... + 195041.

It is an arithmetic number, because the mean of its divisors is an integer number (4501635021).

Almost surely, 2^18006270041 is an apocalyptic number.

It is an amenable number.

18006270041 is a deficient number, since it is larger than the sum of its proper divisors (270043).

18006270041 is a wasteful number, since it uses less digits than its factorization.

18006270041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270042.

The product of its (nonzero) digits is 2688, while the sum is 29.

The spelling of 18006270041 in words is "eighteen billion, six million, two hundred seventy thousand, forty-one".