6768206777 has 4 divisors (see below), whose sum is σ = 6769038480. Its totient is φ = 6767375076.

The previous prime is 6768206761. The next prime is 6768206779. The reversal of 6768206777 is 7776028676.

6768206777 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6768206777 - 2⁴ = 6768206761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6768206779) 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, 403523 + ... + 419960.

It is an arithmetic number, because the mean of its divisors is an integer number (1692259620).

Almost surely, 2^6768206777 is an apocalyptic number.

It is an amenable number.

6768206777 is a deficient number, since it is larger than the sum of its proper divisors (831703).

6768206777 is an equidigital number, since it uses as much as digits as its factorization.

6768206777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831702.

The product of its (nonzero) digits is 8297856, while the sum is 56.

The square root of 6768206777 is about 82269.1119254365. Note that the first 3 decimals coincide. The cubic root of 6768206777 is about 1891.5792420938.

The spelling of 6768206777 in words is "six billion, seven hundred sixty-eight million, two hundred six thousand, seven hundred seventy-seven".