11805751085 has 8 divisors (see below), whose sum is σ = 14655415320. Its totient is φ = 9118924864.

The previous prime is 11805751057. The next prime is 11805751091. The reversal of 11805751085 is 58015750811.

It can be written as a sum of positive squares in 4 ways, for example, as 276676 + 11805474409 = 526^2 + 108653^2 .

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 11805751085 - 2¹⁴ = 11805734701 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40709342 + ... + 40709631.

It is an arithmetic number, because the mean of its divisors is an integer number (1831926915).

Almost surely, 2^11805751085 is an apocalyptic number.

It is an amenable number.

11805751085 is a deficient number, since it is larger than the sum of its proper divisors (2849664235).

11805751085 is an equidigital number, since it uses as much as digits as its factorization.

11805751085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81419007.

The product of its (nonzero) digits is 56000, while the sum is 41.

The spelling of 11805751085 in words is "eleven billion, eight hundred five million, seven hundred fifty-one thousand, eighty-five".