8136816841 has 4 divisors (see below), whose sum is σ = 8191426500. Its totient is φ = 8082207184.

The previous prime is 8136816833. The next prime is 8136816851. The reversal of 8136816841 is 1486186318.

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 966961216 + 7169855625 = 31096^2 + 84675^2 .

It is a cyclic number.

It is not a de Polignac number, because 8136816841 - 2³ = 8136816833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8136816791 and 8136816800.

It is not an unprimeable number, because it can be changed into a prime (8136816851) 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, 27304606 + ... + 27304903.

It is an arithmetic number, because the mean of its divisors is an integer number (2047856625).

Almost surely, 2^8136816841 is an apocalyptic number.

It is an amenable number.

8136816841 is a deficient number, since it is larger than the sum of its proper divisors (54609659).

8136816841 is a wasteful number, since it uses less digits than its factorization.

8136816841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54609658.

The product of its digits is 221184, while the sum is 46.

The square root of 8136816841 is about 90204.3061111830. The cubic root of 8136816841 is about 2011.3370180011.

The spelling of 8136816841 in words is "eight billion, one hundred thirty-six million, eight hundred sixteen thousand, eight hundred forty-one".