6456782279 has 2 divisors, whose sum is σ = 6456782280. Its totient is φ = 6456782278.

The previous prime is 6456782263. The next prime is 6456782323. The reversal of 6456782279 is 9722876546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6456782279 - 2⁴ = 6456782263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6456782209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3228391139 + 3228391140.

It is an arithmetic number, because the mean of its divisors is an integer number (3228391140).

Almost surely, 2^6456782279 is an apocalyptic number.

6456782279 is a deficient number, since it is larger than the sum of its proper divisors (1).

6456782279 is an equidigital number, since it uses as much as digits as its factorization.

6456782279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 56.

The square root of 6456782279 is about 80354.1055516145. The cubic root of 6456782279 is about 1862.1102075383.

The spelling of 6456782279 in words is "six billion, four hundred fifty-six million, seven hundred eighty-two thousand, two hundred seventy-nine".