10827105985 has 4 divisors (see below), whose sum is σ = 12992527188. Its totient is φ = 8661684784.

The previous prime is 10827105983. The next prime is 10827106057. The reversal of 10827105985 is 58950172801.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7559954704 + 3267151281 = 86948^2 + 57159^2 .

It is a cyclic number.

It is not a de Polignac number, because 10827105985 - 2¹ = 10827105983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10827105983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082710594 + ... + 1082710603.

It is an arithmetic number, because the mean of its divisors is an integer number (3248131797).

Almost surely, 2^10827105985 is an apocalyptic number.

It is an amenable number.

10827105985 is a deficient number, since it is larger than the sum of its proper divisors (2165421203).

10827105985 is an equidigital number, since it uses as much as digits as its factorization.

10827105985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165421202.

The product of its (nonzero) digits is 201600, while the sum is 46.

The spelling of 10827105985 in words is "ten billion, eight hundred twenty-seven million, one hundred five thousand, nine hundred eighty-five".