4206263561 has 4 divisors (see below), whose sum is σ = 4209687300. Its totient is φ = 4202839824.

The previous prime is 4206263557. The next prime is 4206263591. The reversal of 4206263561 is 1653626024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4191785536 + 14478025 = 64744^2 + 3805^2 .

It is a cyclic number.

It is not a de Polignac number, because 4206263561 - 2² = 4206263557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4206263591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1710026 + ... + 1712483.

It is an arithmetic number, because the mean of its divisors is an integer number (1052421825).

Almost surely, 2^4206263561 is an apocalyptic number.

It is an amenable number.

4206263561 is a deficient number, since it is larger than the sum of its proper divisors (3423739).

4206263561 is a wasteful number, since it uses less digits than its factorization.

4206263561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423738.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 4206263561 is about 64855.7134029069. The cubic root of 4206263561 is about 1614.2302959629.

Adding to 4206263561 its reverse (1653626024), we get a palindrome (5859889585).

The spelling of 4206263561 in words is "four billion, two hundred six million, two hundred sixty-three thousand, five hundred sixty-one".