2639704705 has 16 divisors (see below), whose sum is σ = 3476317824. Its totient is φ = 1908282880.

The previous prime is 2639704673. The next prime is 2639704783. The reversal of 2639704705 is 5074079362.

It is not a de Polignac number, because 2639704705 - 2⁵ = 2639704673 is a prime.

It is a Duffinian 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, 134512 + ... + 152881.

It is an arithmetic number, because the mean of its divisors is an integer number (217269864).

Almost surely, 2^2639704705 is an apocalyptic number.

It is an amenable number.

2639704705 is a deficient number, since it is larger than the sum of its proper divisors (836613119).

2639704705 is a wasteful number, since it uses less digits than its factorization.

2639704705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287576.

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 2639704705 is about 51378.0566487289. The cubic root of 2639704705 is about 1382.0331134387.

The spelling of 2639704705 in words is "two billion, six hundred thirty-nine million, seven hundred four thousand, seven hundred five".