18232244223281 has 4 divisors (see below), whose sum is σ = 19889720970864. Its totient is φ = 16574767475700.

The previous prime is 18232244223251. The next prime is 18232244223283.

18232244223281 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18232244223281 - 2⁶ = 18232244223217 is a prime.

It is a super-2 number, since 2×18232244223281² (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 (18232244223283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 828738373775 + ... + 828738373796.

It is an arithmetic number, because the mean of its divisors is an integer number (4972430242716).

Almost surely, 2^{18232244223281} is an apocalyptic number.

18232244223281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18232244223281 is a deficient number, since it is larger than the sum of its proper divisors (1657476747583).

18232244223281 is a wasteful number, since it uses less digits than its factorization.

18232244223281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657476747582.

The product of its digits is 589824, while the sum is 44.

The spelling of 18232244223281 in words is "eighteen trillion, two hundred thirty-two billion, two hundred forty-four million, two hundred twenty-three thousand, two hundred eighty-one".