18234288243281 has 16 divisors (see below), whose sum is σ = 20506910997888. Its totient is φ = 16069309276800.

The previous prime is 18234288243217. The next prime is 18234288243293.

18234288243281 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 18234288243281 - 2⁶ = 18234288243217 is a prime.

It is a super-2 number, since 2×18234288243281² (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 (18234288243181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128689685 + ... + 128831298.

It is an arithmetic number, because the mean of its divisors is an integer number (1281681937368).

Almost surely, 2^{18234288243281} is an apocalyptic number.

18234288243281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18234288243281 is a deficient number, since it is larger than the sum of its proper divisors (2272622754607).

18234288243281 is a wasteful number, since it uses less digits than its factorization.

18234288243281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257521192.

The product of its digits is 9437184, while the sum is 56.

The spelling of 18234288243281 in words is "eighteen trillion, two hundred thirty-four billion, two hundred eighty-eight million, two hundred forty-three thousand, two hundred eighty-one".