6766541808 has 80 divisors (see below), whose sum is σ = 18871604640. Its totient is φ = 2076844032.

The previous prime is 6766541777. The next prime is 6766541827. The reversal of 6766541808 is 8081456676.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 241960 + ... + 268472.

It is an arithmetic number, because the mean of its divisors is an integer number (235895058).

Almost surely, 2^6766541808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6766541808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9435802320).

6766541808 is an abundant number, since it is smaller than the sum of its proper divisors (12105062832).

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

6766541808 is a wasteful number, since it uses less digits than its factorization.

6766541808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26946 (or 26940 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The square root of 6766541808 is about 82258.9922622445. The cubic root of 6766541808 is about 1891.4241207946.

The spelling of 6766541808 in words is "six billion, seven hundred sixty-six million, five hundred forty-one thousand, eight hundred eight".