6778568268 has 30 divisors (see below), whose sum is σ = 17720517276. Its totient is φ = 2259522648.

The previous prime is 6778568249. The next prime is 6778568297. The reversal of 6778568268 is 8628658776.

6778568268 is a `hidden beast` number, since 6 + 7 + 7 + 8 + 568 + 2 + 68 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10460430 + ... + 10461077.

Almost surely, 2^6778568268 is an apocalyptic number.

It is an amenable number.

6778568268 is an abundant number, since it is smaller than the sum of its proper divisors (10941949008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6778568268 is a wasteful number, since it uses less digits than its factorization.

6778568268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20921523 (or 20921512 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The square root of 6778568268 is about 82332.0609969166. The cubic root of 6778568268 is about 1892.5440268454.

The spelling of 6778568268 in words is "six billion, seven hundred seventy-eight million, five hundred sixty-eight thousand, two hundred sixty-eight".