6416078789 has 2 divisors, whose sum is σ = 6416078790. Its totient is φ = 6416078788.

The previous prime is 6416078777. The next prime is 6416078819. The reversal of 6416078789 is 9878706146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3911877025 + 2504201764 = 62545^2 + 50042^2 .

It is a cyclic number.

It is not a de Polignac number, because 6416078789 - 2²⁰ = 6415030213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6416078729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3208039394 + 3208039395.

It is an arithmetic number, because the mean of its divisors is an integer number (3208039395).

Almost surely, 2^6416078789 is an apocalyptic number.

It is an amenable number.

6416078789 is a deficient number, since it is larger than the sum of its proper divisors (1).

6416078789 is an equidigital number, since it uses as much as digits as its factorization.

6416078789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The square root of 6416078789 is about 80100.4293933559. The cubic root of 6416078789 is about 1858.1890483556.

The spelling of 6416078789 in words is "six billion, four hundred sixteen million, seventy-eight thousand, seven hundred eighty-nine".