4643145563 has 4 divisors (see below), whose sum is σ = 5306452080. Its totient is φ = 3979839048.

The previous prime is 4643145541. The next prime is 4643145571. The reversal of 4643145563 is 3655413464.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4643145563 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4643145563.

It is not an unprimeable number, because it can be changed into a prime (4643145593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331653248 + ... + 331653261.

It is an arithmetic number, because the mean of its divisors is an integer number (1326613020).

Almost surely, 2^4643145563 is an apocalyptic number.

4643145563 is a deficient number, since it is larger than the sum of its proper divisors (663306517).

4643145563 is an equidigital number, since it uses as much as digits as its factorization.

4643145563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663306516.

The product of its digits is 518400, while the sum is 41.

The square root of 4643145563 is about 68140.6307792935. The cubic root of 4643145563 is about 1668.2870028670.

The spelling of 4643145563 in words is "four billion, six hundred forty-three million, one hundred forty-five thousand, five hundred sixty-three".