4205965261 has 2 divisors, whose sum is σ = 4205965262. Its totient is φ = 4205965260.

The previous prime is 4205965213. The next prime is 4205965271. The reversal of 4205965261 is 1625695024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3602280361 + 603684900 = 60019^2 + 24570^2 .

It is a cyclic number.

It is not a de Polignac number, because 4205965261 - 2²⁹ = 3669094349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4205965271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2102982630 + 2102982631.

It is an arithmetic number, because the mean of its divisors is an integer number (2102982631).

Almost surely, 2^4205965261 is an apocalyptic number.

It is an amenable number.

4205965261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4205965261 is an equidigital number, since it uses as much as digits as its factorization.

4205965261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 4205965261 is about 64853.4136418431. The cubic root of 4205965261 is about 1614.1921357071.

The spelling of 4205965261 in words is "four billion, two hundred five million, nine hundred sixty-five thousand, two hundred sixty-one".