4437644485 has 16 divisors (see below), whose sum is σ = 5468567040. Its totient is φ = 3455786880.

The previous prime is 4437644483. The next prime is 4437644489. The reversal of 4437644485 is 5844467344.

It is a happy number.

It is not a de Polignac number, because 4437644485 - 2¹ = 4437644483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4437644483) 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, 51072 + ... + 107161.

It is an arithmetic number, because the mean of its divisors is an integer number (341785440).

Almost surely, 2^4437644485 is an apocalyptic number.

It is an amenable number.

4437644485 is a deficient number, since it is larger than the sum of its proper divisors (1030922555).

4437644485 is a wasteful number, since it uses less digits than its factorization.

4437644485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158388.

The product of its digits is 5160960, while the sum is 49.

The square root of 4437644485 is about 66615.6474486288. The cubic root of 4437644485 is about 1643.3024477827.

The spelling of 4437644485 in words is "four billion, four hundred thirty-seven million, six hundred forty-four thousand, four hundred eighty-five".