18282944928281 has 16 divisors (see below), whose sum is σ = 20192733475200. Its totient is φ = 16415420774400.

The previous prime is 18282944928263. The next prime is 18282944928293.

18282944928281 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 18282944928281 - 2¹⁸ = 18282944666137 is a prime.

It is a super-2 number, since 2×18282944928281² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18282944928221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24142376 + ... + 24888153.

It is an arithmetic number, because the mean of its divisors is an integer number (1262045842200).

Almost surely, 2^{18282944928281} is an apocalyptic number.

18282944928281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18282944928281 is a deficient number, since it is larger than the sum of its proper divisors (1909788546919).

18282944928281 is a wasteful number, since it uses less digits than its factorization.

18282944928281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49030960.

The product of its digits is 84934656, while the sum is 68.

The spelling of 18282944928281 in words is "eighteen trillion, two hundred eighty-two billion, nine hundred forty-four million, nine hundred twenty-eight thousand, two hundred eighty-one".