6342456391 has 2 divisors, whose sum is σ = 6342456392. Its totient is φ = 6342456390.

The previous prime is 6342456389. The next prime is 6342456403. The reversal of 6342456391 is 1936542436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6342456391 - 2¹ = 6342456389 is a prime.

Together with 6342456389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6342456301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3171228195 + 3171228196.

It is an arithmetic number, because the mean of its divisors is an integer number (3171228196).

Almost surely, 2^6342456391 is an apocalyptic number.

6342456391 is a deficient number, since it is larger than the sum of its proper divisors (1).

6342456391 is an equidigital number, since it uses as much as digits as its factorization.

6342456391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 43.

The square root of 6342456391 is about 79639.5403741132. The cubic root of 6342456391 is about 1851.0543190174.

The spelling of 6342456391 in words is "six billion, three hundred forty-two million, four hundred fifty-six thousand, three hundred ninety-one".