6776345865 has 8 divisors (see below), whose sum is σ = 10842153408. Its totient is φ = 3614051120.

The previous prime is 6776345827. The next prime is 6776345881. The reversal of 6776345865 is 5685436776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6776345865 - 2¹² = 6776341769 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225878181 + ... + 225878210.

It is an arithmetic number, because the mean of its divisors is an integer number (1355269176).

Almost surely, 2^6776345865 is an apocalyptic number.

It is an amenable number.

6776345865 is a deficient number, since it is larger than the sum of its proper divisors (4065807543).

6776345865 is a wasteful number, since it uses less digits than its factorization.

6776345865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451756399.

The product of its digits is 25401600, while the sum is 57.

The square root of 6776345865 is about 82318.5633074339. The cubic root of 6776345865 is about 1892.3371761214.

The spelling of 6776345865 in words is "six billion, seven hundred seventy-six million, three hundred forty-five thousand, eight hundred sixty-five".