18044070268 has 72 divisors (see below), whose sum is σ = 37535545152. Its totient is φ = 7564991616.

The previous prime is 18044070221. The next prime is 18044070269. The reversal of 18044070268 is 86207044081.

It is a self number, because there is not a number n which added to its sum of digits gives 18044070268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18044070269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3810030 + ... + 3814762.

It is an arithmetic number, because the mean of its divisors is an integer number (521327016).

Almost surely, 2^18044070268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18044070268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18767772576).

18044070268 is an abundant number, since it is smaller than the sum of its proper divisors (19491474884).

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

18044070268 is a wasteful number, since it uses less digits than its factorization.

18044070268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171 (or 5162 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 18044070268 in words is "eighteen billion, forty-four million, seventy thousand, two hundred sixty-eight".