6222777647 has 16 divisors (see below), whose sum is σ = 6710951520. Its totient is φ = 5751907200.

The previous prime is 6222777643. The next prime is 6222777661. The reversal of 6222777647 is 7467772226.

It is a cyclic number.

It is not a de Polignac number, because 6222777647 - 2² = 6222777643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6222777595 and 6222777604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6222777641) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 165197 + ... + 199337.

It is an arithmetic number, because the mean of its divisors is an integer number (419434470).

Almost surely, 2^6222777647 is an apocalyptic number.

6222777647 is a deficient number, since it is larger than the sum of its proper divisors (488173873).

6222777647 is a wasteful number, since it uses less digits than its factorization.

6222777647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34394.

The product of its digits is 2765952, while the sum is 50.

The square root of 6222777647 is about 78884.5843432036. The cubic root of 6222777647 is about 1839.3375102989.

The spelling of 6222777647 in words is "six billion, two hundred twenty-two million, seven hundred seventy-seven thousand, six hundred forty-seven".