18853130752 has 40 divisors (see below), whose sum is σ = 37803782412. Its totient is φ = 9392947200.

The previous prime is 18853130729. The next prime is 18853130759. The reversal of 18853130752 is 25703135881.

It can be written as a sum of positive squares in 2 ways, for example, as 17767823616 + 1085307136 = 133296^2 + 32944^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18853130699 and 18853130708.

It is not an unprimeable number, because it can be changed into a prime (18853130759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78352 + ... + 209392.

Almost surely, 2^18853130752 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 18853130752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18901891206).

18853130752 is an abundant number, since it is smaller than the sum of its proper divisors (18950651660).

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

18853130752 is an equidigital number, since it uses as much as digits as its factorization.

18853130752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131340 (or 131324 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 18853130752 in words is "eighteen billion, eight hundred fifty-three million, one hundred thirty thousand, seven hundred fifty-two".