11789825985 has 24 divisors (see below), whose sum is σ = 23355084480. Its totient is φ = 5389634592.

The previous prime is 11789825963. The next prime is 11789825987. The reversal of 11789825985 is 58952898711.

It is not a de Polignac number, because 11789825985 - 2⁵ = 11789825953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11789825987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18713695 + ... + 18714324.

It is an arithmetic number, because the mean of its divisors is an integer number (973128520).

Almost surely, 2^11789825985 is an apocalyptic number.

11789825985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11789825985 is a deficient number, since it is larger than the sum of its proper divisors (11565258495).

11789825985 is a wasteful number, since it uses less digits than its factorization.

11789825985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37428037 (or 37428034 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 63.

The spelling of 11789825985 in words is "eleven billion, seven hundred eighty-nine million, eight hundred twenty-five thousand, nine hundred eighty-five".