18144738613318 has 16 divisors (see below), whose sum is σ = 27948474075456. Its totient is φ = 8830071651240.

The previous prime is 18144738613289. The next prime is 18144738613349. The reversal of 18144738613318 is 81331683744181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372741268 + ... + 372789943.

It is an arithmetic number, because the mean of its divisors is an integer number (1746779629716).

Almost surely, 2^{18144738613318} is an apocalyptic number.

18144738613318 is a deficient number, since it is larger than the sum of its proper divisors (9803735462138).

18144738613318 is a wasteful number, since it uses less digits than its factorization.

18144738613318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745531539.

The product of its digits is 9289728, while the sum is 58.

The spelling of 18144738613318 in words is "eighteen trillion, one hundred forty-four billion, seven hundred thirty-eight million, six hundred thirteen thousand, three hundred eighteen".