18037259208 has 192 divisors, whose sum is σ = 52840569600. Its totient is φ = 5541022080.

The previous prime is 18037259197. The next prime is 18037259209. The reversal of 18037259208 is 80295273081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18037259209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7606263 + ... + 7608633.

It is an arithmetic number, because the mean of its divisors is an integer number (275211300).

Almost surely, 2^18037259208 is an apocalyptic number.

18037259208 is a gapful number since it is divisible by the number (18) 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 18037259208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26420284800).

18037259208 is an abundant number, since it is smaller than the sum of its proper divisors (34803310392).

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

18037259208 is a wasteful number, since it uses less digits than its factorization.

18037259208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552 (or 2545 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 18037259208 in words is "eighteen billion, thirty-seven million, two hundred fifty-nine thousand, two hundred eight".