18068344928 has 12 divisors (see below), whose sum is σ = 35572054140. Its totient is φ = 9034172448.

The previous prime is 18068344913. The next prime is 18068344951. The reversal of 18068344928 is 82944386081.

It is a self number, because there is not a number n which added to its sum of digits gives 18068344928.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 282317858 + ... + 282317921.

It is an arithmetic number, because the mean of its divisors is an integer number (2964337845).

Almost surely, 2^18068344928 is an apocalyptic number.

It is an amenable number.

18068344928 is a deficient number, since it is larger than the sum of its proper divisors (17503709212).

18068344928 is an equidigital number, since it uses as much as digits as its factorization.

18068344928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564635789 (or 564635781 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 18068344928 in words is "eighteen billion, sixty-eight million, three hundred forty-four thousand, nine hundred twenty-eight".