11985803598 has 8 divisors (see below), whose sum is σ = 23971607208. Its totient is φ = 3995267864.

The previous prime is 11985803591. The next prime is 11985803603. The reversal of 11985803598 is 89530858911.

11985803598 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

11985803598 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11985803591) 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 3 ways as a sum of consecutive naturals, for example, 998816961 + ... + 998816972.

It is an arithmetic number, because the mean of its divisors is an integer number (2996450901).

Almost surely, 2^11985803598 is an apocalyptic number.

11985803598 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11985803598 is a wasteful number, since it uses less digits than its factorization.

11985803598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997633938.

The product of its (nonzero) digits is 3110400, while the sum is 57.

The spelling of 11985803598 in words is "eleven billion, nine hundred eighty-five million, eight hundred three thousand, five hundred ninety-eight".