6780668260 has 12 divisors (see below), whose sum is σ = 14239403388. Its totient is φ = 2712267296.

The previous prime is 6780668243. The next prime is 6780668269. The reversal of 6780668260 is 628660876.

It can be written as a sum of positive squares in 2 ways, for example, as 1763496036 + 5017172224 = 41994^2 + 70832^2 .

It is not an unprimeable number, because it can be changed into a prime (6780668269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169516687 + ... + 169516726.

It is an arithmetic number, because the mean of its divisors is an integer number (1186616949).

Almost surely, 2^6780668260 is an apocalyptic number.

It is an amenable number.

6780668260 is an abundant number, since it is smaller than the sum of its proper divisors (7458735128).

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

6780668260 is a wasteful number, since it uses less digits than its factorization.

6780668260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339033422 (or 339033420 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 6780668260 is about 82344.8131942747. The cubic root of 6780668260 is about 1892.7394425938.

The spelling of 6780668260 in words is "six billion, seven hundred eighty million, six hundred sixty-eight thousand, two hundred sixty".