4444518563 has 16 divisors (see below), whose sum is σ = 4566191616. Its totient is φ = 4324750080.

The previous prime is 4444518553. The next prime is 4444518581. The reversal of 4444518563 is 3658154444.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4444518563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4444518553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3463520 + ... + 3464802.

It is an arithmetic number, because the mean of its divisors is an integer number (285386976).

Almost surely, 2^4444518563 is an apocalyptic number.

4444518563 is a deficient number, since it is larger than the sum of its proper divisors (121673053).

4444518563 is a wasteful number, since it uses less digits than its factorization.

4444518563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954.

The product of its digits is 921600, while the sum is 44.

The square root of 4444518563 is about 66667.2225535158. Note that the first 3 decimals coincide. The cubic root of 4444518563 is about 1644.1505224400.

The spelling of 4444518563 in words is "four billion, four hundred forty-four million, five hundred eighteen thousand, five hundred sixty-three".