1279086579 has 16 divisors (see below), whose sum is σ = 2006411040. Its totient is φ = 802563840.

The previous prime is 1279086563. The next prime is 1279086581. The reversal of 1279086579 is 9756809721.

It is not a de Polignac number, because 1279086579 - 2⁴ = 1279086563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1279086539) 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 in 15 ways as a sum of consecutive naturals, for example, 1392882 + ... + 1393799.

It is an arithmetic number, because the mean of its divisors is an integer number (125400690).

Almost surely, 2^1279086579 is an apocalyptic number.

1279086579 is a deficient number, since it is larger than the sum of its proper divisors (727324461).

1279086579 is a wasteful number, since it uses less digits than its factorization.

1279086579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786707 (or 2786701 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The square root of 1279086579 is about 35764.3199152451. The cubic root of 1279086579 is about 1085.5087137146.

The spelling of 1279086579 in words is "one billion, two hundred seventy-nine million, eighty-six thousand, five hundred seventy-nine".