8135668579 has 2 divisors, whose sum is σ = 8135668580. Its totient is φ = 8135668578.

The previous prime is 8135668511. The next prime is 8135668603. The reversal of 8135668579 is 9758665318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8135668579 - 2⁷ = 8135668451 is a prime.

It is not a weakly prime, because it can be changed into another prime (8135665579) 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, 4067834289 + 4067834290.

It is an arithmetic number, because the mean of its divisors is an integer number (4067834290).

Almost surely, 2^8135668579 is an apocalyptic number.

8135668579 is a deficient number, since it is larger than the sum of its proper divisors (1).

8135668579 is an equidigital number, since it uses as much as digits as its factorization.

8135668579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10886400, while the sum is 58.

The square root of 8135668579 is about 90197.9411017790. The cubic root of 8135668579 is about 2011.2424007177.

The spelling of 8135668579 in words is "eight billion, one hundred thirty-five million, six hundred sixty-eight thousand, five hundred seventy-nine".