4617942809 has 2 divisors, whose sum is σ = 4617942810. Its totient is φ = 4617942808.

The previous prime is 4617942779. The next prime is 4617942811. The reversal of 4617942809 is 9082497164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3972528784 + 645414025 = 63028^2 + 25405^2 .

It is a cyclic number.

It is not a de Polignac number, because 4617942809 - 2¹² = 4617938713 is a prime.

Together with 4617942811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4617942899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2308971404 + 2308971405.

It is an arithmetic number, because the mean of its divisors is an integer number (2308971405).

Almost surely, 2^4617942809 is an apocalyptic number.

It is an amenable number.

4617942809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4617942809 is an equidigital number, since it uses as much as digits as its factorization.

4617942809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 4617942809 is about 67955.4472356705. The cubic root of 4617942809 is about 1665.2630664668.

It can be divided in two parts, 46179 and 42809, that added together give a palindrome (88988).

The spelling of 4617942809 in words is "four billion, six hundred seventeen million, nine hundred forty-two thousand, eight hundred nine".