6879338777 has 2 divisors, whose sum is σ = 6879338778. Its totient is φ = 6879338776.

The previous prime is 6879338773. The next prime is 6879338783. The reversal of 6879338777 is 7778339786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6799486681 + 79852096 = 82459^2 + 8936^2 .

It is a cyclic number.

It is not a de Polignac number, because 6879338777 - 2² = 6879338773 is a prime.

It is not a weakly prime, because it can be changed into another prime (6879338771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3439669388 + 3439669389.

It is an arithmetic number, because the mean of its divisors is an integer number (3439669389).

Almost surely, 2^6879338777 is an apocalyptic number.

It is an amenable number.

6879338777 is a deficient number, since it is larger than the sum of its proper divisors (1).

6879338777 is an equidigital number, since it uses as much as digits as its factorization.

6879338777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74680704, while the sum is 65.

The square root of 6879338777 is about 82941.7794419676. The cubic root of 6879338777 is about 1901.8761502069.

The spelling of 6879338777 in words is "six billion, eight hundred seventy-nine million, three hundred thirty-eight thousand, seven hundred seventy-seven".