279846994005 has 48 divisors (see below), whose sum is σ = 505162710000. Its totient is φ = 143137870848.

The previous prime is 279846993949. The next prime is 279846994019. The reversal of 279846994005 is 500499648972.

It can be written as a sum of positive squares in 8 ways, for example, as 676364049 + 279170629956 = 26007^2 + 528366^2 .

It is not a de Polignac number, because 279846994005 - 2⁶ = 279846993941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 525160 + ... + 914049.

It is an arithmetic number, because the mean of its divisors is an integer number (10524223125).

Almost surely, 2^279846994005 is an apocalyptic number.

It is an amenable number.

279846994005 is a deficient number, since it is larger than the sum of its proper divisors (225315715995).

279846994005 is a wasteful number, since it uses less digits than its factorization.

279846994005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439398 (or 1439395 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 279846994005 in words is "two hundred seventy-nine billion, eight hundred forty-six million, nine hundred ninety-four thousand, five".