18000683421481 has 8 divisors (see below), whose sum is σ = 18130669504640. Its totient is φ = 17870704263792.

The previous prime is 18000683421437. The next prime is 18000683421493. The reversal of 18000683421481 is 18412438600081.

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 18000683421481 - 2⁷ = 18000683421353 is a prime.

It is a super-2 number, since 2×18000683421481² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18000683425481) 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 in 7 ways as a sum of consecutive naturals, for example, 3543616 + ... + 6968398.

It is an arithmetic number, because the mean of its divisors is an integer number (2266333688080).

Almost surely, 2^{18000683421481} is an apocalyptic number.

It is an amenable number.

18000683421481 is a deficient number, since it is larger than the sum of its proper divisors (129986083159).

18000683421481 is a wasteful number, since it uses less digits than its factorization.

18000683421481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3462735.

The product of its (nonzero) digits is 294912, while the sum is 46.

The spelling of 18000683421481 in words is "eighteen trillion, six hundred eighty-three million, four hundred twenty-one thousand, four hundred eighty-one".