9816641327 has 4 divisors (see below), whose sum is σ = 10333306680. Its totient is φ = 9299975976.

The previous prime is 9816641311. The next prime is 9816641333. The reversal of 9816641327 is 7231466189.

9816641327 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9816641327 - 2⁴ = 9816641311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9816643327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258332648 + ... + 258332685.

It is an arithmetic number, because the mean of its divisors is an integer number (2583326670).

Almost surely, 2^9816641327 is an apocalyptic number.

9816641327 is a deficient number, since it is larger than the sum of its proper divisors (516665353).

9816641327 is a wasteful number, since it uses less digits than its factorization.

9816641327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516665352.

The product of its digits is 435456, while the sum is 47.

The square root of 9816641327 is about 99078.9651086445. The cubic root of 9816641327 is about 2141.1855694488.

The spelling of 9816641327 in words is "nine billion, eight hundred sixteen million, six hundred forty-one thousand, three hundred twenty-seven".