6772778767 has 8 divisors (see below), whose sum is σ = 7182811296. Its totient is φ = 6364038912.

The previous prime is 6772778713. The next prime is 6772778773. The reversal of 6772778767 is 7678772776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6772778767 - 2¹⁹ = 6772254479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6772778699 and 6772778708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6772778267) 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 in 7 ways as a sum of consecutive naturals, for example, 312363 + ... + 333340.

It is an arithmetic number, because the mean of its divisors is an integer number (897851412).

Almost surely, 2^6772778767 is an apocalyptic number.

6772778767 is a deficient number, since it is larger than the sum of its proper divisors (410032529).

6772778767 is a wasteful number, since it uses less digits than its factorization.

6772778767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646337.

The product of its digits is 67765824, while the sum is 64.

The square root of 6772778767 is about 82296.8940300908. The cubic root of 6772778767 is about 1892.0050729951.

The spelling of 6772778767 in words is "six billion, seven hundred seventy-two million, seven hundred seventy-eight thousand, seven hundred sixty-seven".