8643138413 has 16 divisors (see below), whose sum is σ = 10639896960. Its totient is φ = 6837120576.

The previous prime is 8643138391. The next prime is 8643138431. The reversal of 8643138413 is 3148313468.

8643138413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8643138413 - 2⁶ = 8643138349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8643138443) 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 15 ways as a sum of consecutive naturals, for example, 823706 + ... + 834132.

It is an arithmetic number, because the mean of its divisors is an integer number (664993560).

Almost surely, 2^8643138413 is an apocalyptic number.

It is an amenable number.

8643138413 is a deficient number, since it is larger than the sum of its proper divisors (1996758547).

8643138413 is a wasteful number, since it uses less digits than its factorization.

8643138413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19556.

The product of its digits is 165888, while the sum is 41.

The square root of 8643138413 is about 92968.4807501983. The cubic root of 8643138413 is about 2052.2195601360.

The spelling of 8643138413 in words is "eight billion, six hundred forty-three million, one hundred thirty-eight thousand, four hundred thirteen".