18440771003744 has 12 divisors (see below), whose sum is σ = 36305267913684. Its totient is φ = 9220385501856.

The previous prime is 18440771003741. The next prime is 18440771003791. The reversal of 18440771003744 is 44730017704481.

It is a junction number, because it is equal to n+sod(n) for n = 18440771003692 and 18440771003701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18440771003741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288137046902 + ... + 288137046965.

It is an arithmetic number, because the mean of its divisors is an integer number (3025438992807).

Almost surely, 2^{18440771003744} is an apocalyptic number.

It is an amenable number.

18440771003744 is a deficient number, since it is larger than the sum of its proper divisors (17864496909940).

18440771003744 is an equidigital number, since it uses as much as digits as its factorization.

18440771003744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576274093877 (or 576274093869 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 50.

The spelling of 18440771003744 in words is "eighteen trillion, four hundred forty billion, seven hundred seventy-one million, three thousand, seven hundred forty-four".