6782116279 has 4 divisors (see below), whose sum is σ = 6783033960. Its totient is φ = 6781198600.

The previous prime is 6782116273. The next prime is 6782116321. The reversal of 6782116279 is 9726112876.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6782116279 - 2⁵ = 6782116247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6782116273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447664 + ... + 462565.

It is an arithmetic number, because the mean of its divisors is an integer number (1695758490).

Almost surely, 2^6782116279 is an apocalyptic number.

6782116279 is a deficient number, since it is larger than the sum of its proper divisors (917681).

6782116279 is an equidigital number, since it uses as much as digits as its factorization.

6782116279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917680.

The product of its digits is 508032, while the sum is 49.

The square root of 6782116279 is about 82353.6051366302. The cubic root of 6782116279 is about 1892.8741651854.

It can be divided in two parts, 67821 and 16279, that added together give a square (84100 = 290²).

The spelling of 6782116279 in words is "six billion, seven hundred eighty-two million, one hundred sixteen thousand, two hundred seventy-nine".