11985803597 has 8 divisors (see below), whose sum is σ = 12201470112. Its totient is φ = 11771218800.

The previous prime is 11985803591. The next prime is 11985803603. The reversal of 11985803597 is 79530858911.

11985803597 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11985803591) and next prime (11985803603).

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

It is a cyclic number.

It is not a de Polignac number, because 11985803597 - 2¹⁴ = 11985787213 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 248054 + ... + 292407.

It is an arithmetic number, because the mean of its divisors is an integer number (1525183764).

Almost surely, 2^11985803597 is an apocalyptic number.

It is an amenable number.

11985803597 is a deficient number, since it is larger than the sum of its proper divisors (215666515).

11985803597 is an equidigital number, since it uses as much as digits as its factorization.

11985803597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540859.

The product of its (nonzero) digits is 2721600, while the sum is 56.

The spelling of 11985803597 in words is "eleven billion, nine hundred eighty-five million, eight hundred three thousand, five hundred ninety-seven".