18348382918651 has 8 divisors (see below), whose sum is σ = 18519990775344. Its totient is φ = 18176777425920.

The previous prime is 18348382918643. The next prime is 18348382918681. The reversal of 18348382918651 is 15681928384381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18348382918651 - 2³ = 18348382918643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18348382918681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17615371 + ... + 18627883.

It is an arithmetic number, because the mean of its divisors is an integer number (2314998846918).

Almost surely, 2^{18348382918651} is an apocalyptic number.

18348382918651 is a deficient number, since it is larger than the sum of its proper divisors (171607856693).

18348382918651 is a wasteful number, since it uses less digits than its factorization.

18348382918651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181981.

The product of its digits is 79626240, while the sum is 67.

The spelling of 18348382918651 in words is "eighteen trillion, three hundred forty-eight billion, three hundred eighty-two million, nine hundred eighteen thousand, six hundred fifty-one".