6786776320 has 36 divisors (see below), whose sum is σ = 16256453220. Its totient is φ = 2714710016.

The previous prime is 6786776309. The next prime is 6786776357. The reversal of 6786776320 is 236776876.

It can be written as a sum of positive squares in 2 ways, for example, as 4051067904 + 2735708416 = 63648^2 + 52304^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2649805 + ... + 2652364.

It is an arithmetic number, because the mean of its divisors is an integer number (451568145).

Almost surely, 2^6786776320 is an apocalyptic number.

It is an amenable number.

6786776320 is an abundant number, since it is smaller than the sum of its proper divisors (9469676900).

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

6786776320 is an equidigital number, since it uses as much as digits as its factorization.

6786776320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5302190 (or 5302176 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 52.

The square root of 6786776320 is about 82381.8931562027. The cubic root of 6786776320 is about 1893.3076017575.

The spelling of 6786776320 in words is "six billion, seven hundred eighty-six million, seven hundred seventy-six thousand, three hundred twenty".