18075000000 has 252 divisors, whose sum is σ = 60027313016. Its totient is φ = 4800000000.

The previous prime is 18074999989. The next prime is 18075000001. The reversal of 18075000000 is 57081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18075000001) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 74999880 + ... + 75000120.

Almost surely, 2^18075000000 is an apocalyptic number.

18075000000 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 18075000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30013656508).

18075000000 is an abundant number, since it is smaller than the sum of its proper divisors (41952313016).

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

18075000000 is an frugal number, since it uses more digits than its factorization.

18075000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 21.

Adding to 18075000000 its reverse (57081), we get a palindrome (18075057081).

The spelling of 18075000000 in words is "eighteen billion, seventy-five million", and thus it is an aban number and an uban number.