2620843205 has 16 divisors (see below), whose sum is σ = 3230935344. Its totient is φ = 2039685120.

The previous prime is 2620843201. The next prime is 2620843217. The reversal of 2620843205 is 5023480262.

2620843205 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 8 ways, for example, as 878114689 + 1742728516 = 29633^2 + 41746^2 .

It is not a de Polignac number, because 2620843205 - 2² = 2620843201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620843201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54257 + ... + 90473.

It is an arithmetic number, because the mean of its divisors is an integer number (201933459).

Almost surely, 2^2620843205 is an apocalyptic number.

It is an amenable number.

2620843205 is a deficient number, since it is larger than the sum of its proper divisors (610092139).

2620843205 is a wasteful number, since it uses less digits than its factorization.

2620843205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36616.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 2620843205 is about 51194.1715920865. The cubic root of 2620843205 is about 1378.7335586000.

The spelling of 2620843205 in words is "two billion, six hundred twenty million, eight hundred forty-three thousand, two hundred five".