6776249678 has 24 divisors (see below), whose sum is σ = 11474288280. Its totient is φ = 2972990160.

The previous prime is 6776249663. The next prime is 6776249723. The reversal of 6776249678 is 8769426776.

It is a self number, because there is not a number n which added to its sum of digits gives 6776249678.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2077613 + ... + 2080871.

It is an arithmetic number, because the mean of its divisors is an integer number (478095345).

Almost surely, 2^6776249678 is an apocalyptic number.

6776249678 is a deficient number, since it is larger than the sum of its proper divisors (4698038602).

6776249678 is an equidigital number, since it uses as much as digits as its factorization.

6776249678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560 (or 3301 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 62.

The square root of 6776249678 is about 82317.9790689737. The cubic root of 6776249678 is about 1892.3282224709.

The spelling of 6776249678 in words is "six billion, seven hundred seventy-six million, two hundred forty-nine thousand, six hundred seventy-eight".