18714345216064 has 21 divisors (see below), whose sum is σ = 37136347463631. Its totient is φ = 9357155304000.

The previous prime is 18714345216059. The next prime is 18714345216071. The reversal of 18714345216064 is 46061254341781.

The square root of 18714345216064 is 4326008.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 34337689 + ... + 34878439.

Almost surely, 2^{18714345216064} is an apocalyptic number.

18714345216064 is the 4326008-th square number.

It is an amenable number.

18714345216064 is a deficient number, since it is larger than the sum of its proper divisors (18422002247567).

18714345216064 is an frugal number, since it uses more digits than its factorization.

18714345216064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081514 (or 540753 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 18714345216064 in words is "eighteen trillion, seven hundred fourteen billion, three hundred forty-five million, two hundred sixteen thousand, sixty-four".