279408952995479 has 4 divisors (see below), whose sum is σ = 279428667181176. Its totient is φ = 279389238809784.

The previous prime is 279408952995433. The next prime is 279408952995493. The reversal of 279408952995479 is 974599259804972.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-279408952995479 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 279408952995394 and 279408952995403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (279408952995499) 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, 9857071589 + ... + 9857099934.

It is an arithmetic number, because the mean of its divisors is an integer number (69857166795294).

Almost surely, 2^{279408952995479} is an apocalyptic number.

279408952995479 is a deficient number, since it is larger than the sum of its proper divisors (19714185697).

279408952995479 is a wasteful number, since it uses less digits than its factorization.

279408952995479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19714185696.

The product of its (nonzero) digits is 37035532800, while the sum is 89.

The spelling of 279408952995479 in words is "two hundred seventy-nine trillion, four hundred eight billion, nine hundred fifty-two million, nine hundred ninety-five thousand, four hundred seventy-nine".