6813428539 has 2 divisors, whose sum is σ = 6813428540. Its totient is φ = 6813428538.

The previous prime is 6813428537. The next prime is 6813428563. The reversal of 6813428539 is 9358243186.

6813428539 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6813428539 - 2¹ = 6813428537 is a prime.

Together with 6813428537, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6813428492 and 6813428501.

It is not a weakly prime, because it can be changed into another prime (6813428537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3406714269 + 3406714270.

It is an arithmetic number, because the mean of its divisors is an integer number (3406714270).

Almost surely, 2^6813428539 is an apocalyptic number.

6813428539 is a deficient number, since it is larger than the sum of its proper divisors (1).

6813428539 is an equidigital number, since it uses as much as digits as its factorization.

6813428539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 49.

The square root of 6813428539 is about 82543.4948315129. The cubic root of 6813428539 is about 1895.7827551826.

The spelling of 6813428539 in words is "six billion, eight hundred thirteen million, four hundred twenty-eight thousand, five hundred thirty-nine".