4640968447 has 2 divisors, whose sum is σ = 4640968448. Its totient is φ = 4640968446.

The previous prime is 4640968433. The next prime is 4640968471. The reversal of 4640968447 is 7448690464.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4640968447 - 2¹¹ = 4640966399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4640968394 and 4640968403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4640968477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320484223 + 2320484224.

It is an arithmetic number, because the mean of its divisors is an integer number (2320484224).

Almost surely, 2^4640968447 is an apocalyptic number.

4640968447 is a deficient number, since it is larger than the sum of its proper divisors (1).

4640968447 is an equidigital number, since it uses as much as digits as its factorization.

4640968447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4644864, while the sum is 52.

The square root of 4640968447 is about 68124.6537385696. The cubic root of 4640968447 is about 1668.0262154259.

The spelling of 4640968447 in words is "four billion, six hundred forty million, nine hundred sixty-eight thousand, four hundred forty-seven".