6777547768 has 24 divisors (see below), whose sum is σ = 12984069600. Its totient is φ = 3316663664.

The previous prime is 6777547757. The next prime is 6777547781. The reversal of 6777547768 is 8677457776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174088 + ... + 209431.

It is an arithmetic number, because the mean of its divisors is an integer number (541002900).

Almost surely, 2^6777547768 is an apocalyptic number.

It is an amenable number.

6777547768 is a deficient number, since it is larger than the sum of its proper divisors (6206521832).

6777547768 is a wasteful number, since it uses less digits than its factorization.

6777547768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383619 (or 383568 counting only the distinct ones).

The product of its digits is 96808320, while the sum is 64.

The square root of 6777547768 is about 82325.8632994516. The cubic root of 6777547768 is about 1892.4490491632.

The spelling of 6777547768 in words is "six billion, seven hundred seventy-seven million, five hundred forty-seven thousand, seven hundred sixty-eight".