6405305213 has 16 divisors (see below), whose sum is σ = 7078817280. Its totient is φ = 5768676144.

The previous prime is 6405305191. The next prime is 6405305233. The reversal of 6405305213 is 3125035046.

It is a cyclic number.

It is not a de Polignac number, because 6405305213 - 2⁶ = 6405305149 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 (6405305233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26270 + ... + 116192.

It is an arithmetic number, because the mean of its divisors is an integer number (442426080).

Almost surely, 2^6405305213 is an apocalyptic number.

It is an amenable number.

6405305213 is a deficient number, since it is larger than the sum of its proper divisors (673512067).

6405305213 is a wasteful number, since it uses less digits than its factorization.

6405305213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90128.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 6405305213 is about 80033.1507126891. The cubic root of 6405305213 is about 1857.1484046211.

The spelling of 6405305213 in words is "six billion, four hundred five million, three hundred five thousand, two hundred thirteen".