2639080205 has 8 divisors (see below), whose sum is σ = 3195951000. Its totient is φ = 2091894336.

The previous prime is 2639080181. The next prime is 2639080211. The reversal of 2639080205 is 5020809362.

2639080205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1058461156 + 1580619049 = 32534^2 + 39757^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2639080205 - 2⁶ = 2639080141 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2420630 + ... + 2421719.

It is an arithmetic number, because the mean of its divisors is an integer number (399493875).

Almost surely, 2^2639080205 is an apocalyptic number.

It is an amenable number.

2639080205 is a deficient number, since it is larger than the sum of its proper divisors (556870795).

2639080205 is a wasteful number, since it uses less digits than its factorization.

2639080205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4842463.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2639080205 is about 51371.9787919445. The cubic root of 2639080205 is about 1381.9241179453.

Adding to 2639080205 its reverse (5020809362), we get a palindrome (7659889567).

The spelling of 2639080205 in words is "two billion, six hundred thirty-nine million, eighty thousand, two hundred five".