18067848637440 has 704 divisors, whose sum is σ = 69611561948160. Its totient is φ = 3912117780480.

The previous prime is 18067848637409. The next prime is 18067848637459. The reversal of 18067848637440 is 4473684876081.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 165203575 + ... + 165312905.

Almost surely, 2^{18067848637440} is an apocalyptic number.

18067848637440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18067848637440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34805780974080).

18067848637440 is an abundant number, since it is smaller than the sum of its proper divisors (51543713310720).

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

18067848637440 is a wasteful number, since it uses less digits than its factorization.

18067848637440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109448 (or 109430 counting only the distinct ones).

The product of its (nonzero) digits is 173408256, while the sum is 66.

The spelling of 18067848637440 in words is "eighteen trillion, sixty-seven billion, eight hundred forty-eight million, six hundred thirty-seven thousand, four hundred forty".