8159085479 has 2 divisors, whose sum is σ = 8159085480. Its totient is φ = 8159085478.

The previous prime is 8159085449. The next prime is 8159085497. The reversal of 8159085479 is 9745809518.

Together with next prime (8159085497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8159085479 - 2⁸ = 8159085223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8159085419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4079542739 + 4079542740.

It is an arithmetic number, because the mean of its divisors is an integer number (4079542740).

Almost surely, 2^8159085479 is an apocalyptic number.

8159085479 is a deficient number, since it is larger than the sum of its proper divisors (1).

8159085479 is an equidigital number, since it uses as much as digits as its factorization.

8159085479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 56.

The square root of 8159085479 is about 90327.6562244366. The cubic root of 8159085479 is about 2013.1702057215.

The spelling of 8159085479 in words is "eight billion, one hundred fifty-nine million, eighty-five thousand, four hundred seventy-nine".