6776323920 has 100 divisors (see below), whose sum is σ = 23535199380. Its totient is φ = 1807017984.

The previous prime is 6776323907. The next prime is 6776323927. The reversal of 6776323920 is 293236776.

6776323920 is a `hidden beast` number, since 6 + 7 + 7 + 632 + 3 + 9 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5014339344 + 1761984576 = 70812^2 + 41976^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6776323927) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 516385 + ... + 529344.

Almost surely, 2^6776323920 is an apocalyptic number.

6776323920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6776323920 is an abundant number, since it is smaller than the sum of its proper divisors (16758875460).

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

6776323920 is a wasteful number, since it uses less digits than its factorization.

6776323920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045754 (or 1045739 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 45.

The square root of 6776323920 is about 82318.4300141833. The cubic root of 6776323920 is about 1892.3351333594.

The spelling of 6776323920 in words is "six billion, seven hundred seventy-six million, three hundred twenty-three thousand, nine hundred twenty".