6782116277 has 4 divisors (see below), whose sum is σ = 6793870956. Its totient is φ = 6770361600.

The previous prime is 6782116273. The next prime is 6782116321. The reversal of 6782116277 is 7726112876.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5434785841 + 1347330436 = 73721^2 + 36706^2 .

It is a cyclic number.

It is not a de Polignac number, because 6782116277 - 2² = 6782116273 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5876474 + ... + 5877627.

It is an arithmetic number, because the mean of its divisors is an integer number (1698467739).

Almost surely, 2^6782116277 is an apocalyptic number.

It is an amenable number.

6782116277 is a deficient number, since it is larger than the sum of its proper divisors (11754679).

6782116277 is a wasteful number, since it uses less digits than its factorization.

6782116277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11754678.

The product of its digits is 395136, while the sum is 47.

The square root of 6782116277 is about 82353.6051244874. The cubic root of 6782116277 is about 1892.8741649993.

The spelling of 6782116277 in words is "six billion, seven hundred eighty-two million, one hundred sixteen thousand, two hundred seventy-seven".