9018918436844 has 24 divisors (see below), whose sum is σ = 16711664921280. Its totient is φ = 4244161462016.

The previous prime is 9018918436841. The next prime is 9018918436859. The reversal of 9018918436844 is 4486348198109.

It is not an unprimeable number, because it can be changed into a prime (9018918436841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8800394 + ... + 9771630.

It is an arithmetic number, because the mean of its divisors is an integer number (696319371720).

Almost surely, 2^{9018918436844} is an apocalyptic number.

It is an amenable number.

9018918436844 is a deficient number, since it is larger than the sum of its proper divisors (7692746484436).

9018918436844 is a wasteful number, since it uses less digits than its factorization.

9018918436844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107817 (or 1107815 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 65.

The spelling of 9018918436844 in words is "nine trillion, eighteen billion, nine hundred eighteen million, four hundred thirty-six thousand, eight hundred forty-four".