1279192486379 has 4 divisors (see below), whose sum is σ = 1279196569176. Its totient is φ = 1279188403584.

The previous prime is 1279192486367. The next prime is 1279192486391. The reversal of 1279192486379 is 9736842919721.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1279192486367) and next prime (1279192486391).

It is a cyclic number.

It is not a de Polignac number, because 1279192486379 - 2⁸ = 1279192486123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1279192486349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1528469 + ... + 2212374.

It is an arithmetic number, because the mean of its divisors is an integer number (319799142294).

Almost surely, 2^{1279192486379} is an apocalyptic number.

1279192486379 is a deficient number, since it is larger than the sum of its proper divisors (4082797).

1279192486379 is an equidigital number, since it uses as much as digits as its factorization.

1279192486379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082796.

The product of its digits is 82301184, while the sum is 68.

The spelling of 1279192486379 in words is "one trillion, two hundred seventy-nine billion, one hundred ninety-two million, four hundred eighty-six thousand, three hundred seventy-nine".