18043941744 has 30 divisors (see below), whose sum is σ = 50497976256. Its totient is φ = 6014647200.

The previous prime is 18043941731. The next prime is 18043941749. The reversal of 18043941744 is 44714934081.

It is a self number, because there is not a number n which added to its sum of digits gives 18043941744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18043941749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62652432 + ... + 62652719.

Almost surely, 2^18043941744 is an apocalyptic number.

It is an amenable number.

18043941744 is an abundant number, since it is smaller than the sum of its proper divisors (32454034512).

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

18043941744 is a wasteful number, since it uses less digits than its factorization.

18043941744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125305165 (or 125305156 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 18043941744 in words is "eighteen billion, forty-three million, nine hundred forty-one thousand, seven hundred forty-four".