6672222779 has 2 divisors, whose sum is σ = 6672222780. Its totient is φ = 6672222778.

The previous prime is 6672222769. The next prime is 6672222787. The reversal of 6672222779 is 9772222766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6672222779 - 2²⁰ = 6671174203 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6672222709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3336111389 + 3336111390.

It is an arithmetic number, because the mean of its divisors is an integer number (3336111390).

Almost surely, 2^6672222779 is an apocalyptic number.

6672222779 is a deficient number, since it is larger than the sum of its proper divisors (1).

6672222779 is an equidigital number, since it uses as much as digits as its factorization.

6672222779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1778112, while the sum is 50.

The square root of 6672222779 is about 81683.6751070861. The cubic root of 6672222779 is about 1882.5947627672.

The spelling of 6672222779 in words is "six billion, six hundred seventy-two million, two hundred twenty-two thousand, seven hundred seventy-nine".