6558224879 has 2 divisors, whose sum is σ = 6558224880. Its totient is φ = 6558224878.

The previous prime is 6558224873. The next prime is 6558224887. The reversal of 6558224879 is 9784228556.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6558224879 - 2¹² = 6558220783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6558224873) 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 as a sum of consecutive naturals, namely, 3279112439 + 3279112440.

It is an arithmetic number, because the mean of its divisors is an integer number (3279112440).

Almost surely, 2^6558224879 is an apocalyptic number.

6558224879 is a deficient number, since it is larger than the sum of its proper divisors (1).

6558224879 is an equidigital number, since it uses as much as digits as its factorization.

6558224879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9676800, while the sum is 56.

The square root of 6558224879 is about 80982.8678116551. The cubic root of 6558224879 is about 1871.8114581972.

The spelling of 6558224879 in words is "six billion, five hundred fifty-eight million, two hundred twenty-four thousand, eight hundred seventy-nine".