18033327744 has 64 divisors (see below), whose sum is σ = 49983704640. Its totient is φ = 5749753856.

The previous prime is 18033327727. The next prime is 18033327749. The reversal of 18033327744 is 44772333081.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 18033327696 and 18033327705.

It is not an unprimeable number, because it can be changed into a prime (18033327749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1012077 + ... + 1029740.

It is an arithmetic number, because the mean of its divisors is an integer number (780995385).

Almost surely, 2^18033327744 is an apocalyptic number.

It is an amenable number.

18033327744 is an abundant number, since it is smaller than the sum of its proper divisors (31950376896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18033327744 is a wasteful number, since it uses less digits than its factorization.

18033327744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041857 (or 2041845 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The spelling of 18033327744 in words is "eighteen billion, thirty-three million, three hundred twenty-seven thousand, seven hundred forty-four".