11959893611 has 4 divisors (see below), whose sum is σ = 11960605800. Its totient is φ = 11959181424.

The previous prime is 11959893559. The next prime is 11959893613. The reversal of 11959893611 is 11639895911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11959893611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11959893613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330281 + ... + 364698.

It is an arithmetic number, because the mean of its divisors is an integer number (2990151450).

Almost surely, 2^11959893611 is an apocalyptic number.

11959893611 is a deficient number, since it is larger than the sum of its proper divisors (712189).

11959893611 is an equidigital number, since it uses as much as digits as its factorization.

11959893611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712188.

The product of its digits is 524880, while the sum is 53.

The spelling of 11959893611 in words is "eleven billion, nine hundred fifty-nine million, eight hundred ninety-three thousand, six hundred eleven".