18018024027027 has 16 divisors (see below), whose sum is σ = 25326639132672. Its totient is φ = 11377201167360.

The previous prime is 18018024027013. The next prime is 18018024027071. The reversal of 18018024027027 is 72072042081081.

It is not a de Polignac number, because 18018024027027 - 2¹² = 18018024022931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18018024027027.

It is not an unprimeable number, because it can be changed into a prime (18018024027127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2061082798 + ... + 2061091539.

It is an arithmetic number, because the mean of its divisors is an integer number (1582914945792).

Almost surely, 2^{18018024027027} is an apocalyptic number.

18018024027027 is a deficient number, since it is larger than the sum of its proper divisors (7308615105645).

18018024027027 is a wasteful number, since it uses less digits than its factorization.

18018024027027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4122174418.

The product of its (nonzero) digits is 100352, while the sum is 42.

The spelling of 18018024027027 in words is "eighteen trillion, eighteen billion, twenty-four million, twenty-seven thousand, twenty-seven".