6216421343 has 6 divisors (see below), whose sum is σ = 6832926072. Its totient is φ = 5651292020.

The previous prime is 6216421339. The next prime is 6216421381. The reversal of 6216421343 is 3431246126.

It is not a de Polignac number, because 6216421343 - 2² = 6216421339 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 (6216421313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25687571 + ... + 25687812.

It is an arithmetic number, because the mean of its divisors is an integer number (1138821012).

Almost surely, 2^6216421343 is an apocalyptic number.

6216421343 is a deficient number, since it is larger than the sum of its proper divisors (616504729).

6216421343 is a wasteful number, since it uses less digits than its factorization.

6216421343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51375405 (or 51375394 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 6216421343 is about 78844.2854175241. The cubic root of 6216421343 is about 1838.7110284687.

Adding to 6216421343 its reverse (3431246126), we get a palindrome (9647667469).

The spelling of 6216421343 in words is "six billion, two hundred sixteen million, four hundred twenty-one thousand, three hundred forty-three".