10839868705 has 4 divisors (see below), whose sum is σ = 13007842452. Its totient is φ = 8671894960.

The previous prime is 10839868703. The next prime is 10839868717. The reversal of 10839868705 is 50786893801.

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 6962066721 + 3877801984 = 83439^2 + 62272^2 .

It is not a de Polignac number, because 10839868705 - 2¹ = 10839868703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10839868703) 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, 1083986866 + ... + 1083986875.

It is an arithmetic number, because the mean of its divisors is an integer number (3251960613).

Almost surely, 2^10839868705 is an apocalyptic number.

It is an amenable number.

10839868705 is a deficient number, since it is larger than the sum of its proper divisors (2167973747).

10839868705 is an equidigital number, since it uses as much as digits as its factorization.

10839868705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167973746.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 10839868705 in words is "ten billion, eight hundred thirty-nine million, eight hundred sixty-eight thousand, seven hundred five".