279646056085 has 16 divisors (see below), whose sum is σ = 387616352832. Its totient is φ = 191415481600.

The previous prime is 279646056049. The next prime is 279646056091. The reversal of 279646056085 is 580650646972.

It is not a de Polignac number, because 279646056085 - 2⁷ = 279646055957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149542411 + ... + 149544280.

It is an arithmetic number, because the mean of its divisors is an integer number (24226022052).

Almost surely, 2^279646056085 is an apocalyptic number.

It is an amenable number.

279646056085 is a deficient number, since it is larger than the sum of its proper divisors (107970296747).

279646056085 is a wasteful number, since it uses less digits than its factorization.

279646056085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299086724.

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 279646056085 in words is "two hundred seventy-nine billion, six hundred forty-six million, fifty-six thousand, eighty-five".