11685845211 has 8 divisors (see below), whose sum is σ = 15581726784. Its totient is φ = 7790263560.

The previous prime is 11685845179. The next prime is 11685845233. The reversal of 11685845211 is 11254858611.

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

It is not a de Polignac number, because 11685845211 - 2⁵ = 11685845179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11685845111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42016 + ... + 158546.

It is an arithmetic number, because the mean of its divisors is an integer number (1947715848).

Almost surely, 2^11685845211 is an apocalyptic number.

11685845211 is a deficient number, since it is larger than the sum of its proper divisors (3895881573).

11685845211 is a wasteful number, since it uses less digits than its factorization.

11685845211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149961.

The product of its digits is 76800, while the sum is 42.

The spelling of 11685845211 in words is "eleven billion, six hundred eighty-five million, eight hundred forty-five thousand, two hundred eleven".