18118729367 has 2 divisors, whose sum is σ = 18118729368. Its totient is φ = 18118729366.

The previous prime is 18118729361. The next prime is 18118729373. The reversal of 18118729367 is 76392781181.

It is a balanced prime because it is at equal distance from previous prime (18118729361) and next prime (18118729373).

It is a cyclic number.

It is not a de Polignac number, because 18118729367 - 2⁴ = 18118729351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18118729361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9059364683 + 9059364684.

It is an arithmetic number, because the mean of its divisors is an integer number (9059364684).

Almost surely, 2^18118729367 is an apocalyptic number.

18118729367 is a deficient number, since it is larger than the sum of its proper divisors (1).

18118729367 is an equidigital number, since it uses as much as digits as its factorization.

18118729367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 53.

The spelling of 18118729367 in words is "eighteen billion, one hundred eighteen million, seven hundred twenty-nine thousand, three hundred sixty-seven".