6774776667 has 12 divisors (see below), whose sum is σ = 10300830280. Its totient is φ = 4278806208.

The previous prime is 6774776653. The next prime is 6774776713. The reversal of 6774776667 is 7666774776.

It is not a de Polignac number, because 6774776667 - 2¹⁰ = 6774775643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6774776867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19809118 + ... + 19809459.

Almost surely, 2^6774776667 is an apocalyptic number.

6774776667 is a deficient number, since it is larger than the sum of its proper divisors (3526053613).

6774776667 is a wasteful number, since it uses less digits than its factorization.

6774776667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39618602 (or 39618599 counting only the distinct ones).

The product of its digits is 87127488, while the sum is 63.

The square root of 6774776667 is about 82309.0315032318. The cubic root of 6774776667 is about 1892.1910953766.

The spelling of 6774776667 in words is "six billion, seven hundred seventy-four million, seven hundred seventy-six thousand, six hundred sixty-seven".