6345984779 has 2 divisors, whose sum is σ = 6345984780. Its totient is φ = 6345984778.

The previous prime is 6345984773. The next prime is 6345984787. The reversal of 6345984779 is 9774895436.

6345984779 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 6345984779 - 2⁸ = 6345984523 is a prime.

It is not a weakly prime, because it can be changed into another prime (6345984773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3172992389 + 3172992390.

It is an arithmetic number, because the mean of its divisors is an integer number (3172992390).

Almost surely, 2^6345984779 is an apocalyptic number.

6345984779 is a deficient number, since it is larger than the sum of its proper divisors (1).

6345984779 is an equidigital number, since it uses as much as digits as its factorization.

6345984779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45722880, while the sum is 62.

The square root of 6345984779 is about 79661.6895314178. The cubic root of 6345984779 is about 1851.3975102923.

The spelling of 6345984779 in words is "six billion, three hundred forty-five million, nine hundred eighty-four thousand, seven hundred seventy-nine".