18009590752 has 48 divisors (see below), whose sum is σ = 36692952912. Its totient is φ = 8694466560.

The previous prime is 18009590723. The next prime is 18009590761. The reversal of 18009590752 is 25709590081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97048 + ... + 213160.

It is an arithmetic number, because the mean of its divisors is an integer number (764436519).

Almost surely, 2^18009590752 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 18009590752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18346476456).

18009590752 is an abundant number, since it is smaller than the sum of its proper divisors (18683362160).

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

18009590752 is a wasteful number, since it uses less digits than its factorization.

18009590752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116291 (or 116283 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 46.

The spelling of 18009590752 in words is "eighteen billion, nine million, five hundred ninety thousand, seven hundred fifty-two".