6776067321 has 6 divisors (see below), whose sum is σ = 9787652810. Its totient is φ = 4517378208.

The previous prime is 6776067317. The next prime is 6776067367. The reversal of 6776067321 is 1237606776.

6776067321 is a `hidden beast` number, since 6 + 7 + 7 + 606 + 7 + 32 + 1 = 666.

6776067321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6113519721 + 662547600 = 78189^2 + 25740^2 .

It is not a de Polignac number, because 6776067321 - 2² = 6776067317 is a prime.

It is a super-3 number, since 3×6776067321³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6776067391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 376448176 + ... + 376448193.

Almost surely, 2^6776067321 is an apocalyptic number.

It is an amenable number.

6776067321 is a deficient number, since it is larger than the sum of its proper divisors (3011585489).

6776067321 is a wasteful number, since it uses less digits than its factorization.

6776067321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752896375 (or 752896372 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 6776067321 is about 82316.8714237853. The cubic root of 6776067321 is about 1892.3112473785.

The spelling of 6776067321 in words is "six billion, seven hundred seventy-six million, sixty-seven thousand, three hundred twenty-one".