18444105001 has 16 divisors (see below), whose sum is σ = 22539911040. Its totient is φ = 14731948800.

The previous prime is 18444104981. The next prime is 18444105013. The reversal of 18444105001 is 10050144481.

It is a cyclic number.

It is not a de Polignac number, because 18444105001 - 2²³ = 18435716393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18444100001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755271 + ... + 779308.

It is an arithmetic number, because the mean of its divisors is an integer number (1408744440).

Almost surely, 2^18444105001 is an apocalyptic number.

It is an amenable number.

18444105001 is a deficient number, since it is larger than the sum of its proper divisors (4095806039).

18444105001 is a wasteful number, since it uses less digits than its factorization.

18444105001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534704.

The product of its (nonzero) digits is 2560, while the sum is 28.

Adding to 18444105001 its reverse (10050144481), we get a palindrome (28494249482).

The spelling of 18444105001 in words is "eighteen billion, four hundred forty-four million, one hundred five thousand, one".