18311446048012 has 48 divisors (see below), whose sum is σ = 34527309328512. Its totient is φ = 8447206844160.

The previous prime is 18311446047971. The next prime is 18311446048087. The reversal of 18311446048012 is 21084064411381.

It is a self number, because there is not a number n which added to its sum of digits gives 18311446048012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1596319437 + ... + 1596330907.

It is an arithmetic number, because the mean of its divisors is an integer number (719318944344).

Almost surely, 2^{18311446048012} is an apocalyptic number.

It is an amenable number.

18311446048012 is a deficient number, since it is larger than the sum of its proper divisors (16215863280500).

18311446048012 is a wasteful number, since it uses less digits than its factorization.

18311446048012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24178 (or 24176 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The spelling of 18311446048012 in words is "eighteen trillion, three hundred eleven billion, four hundred forty-six million, forty-eight thousand, twelve".