4544665441 has 4 divisors (see below), whose sum is σ = 4691267584. Its totient is φ = 4398063300.

The previous prime is 4544665421. The next prime is 4544665481. The reversal of 4544665441 is 1445664454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4544665441 - 2³¹ = 2397181793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4544665421) 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, 73301025 + ... + 73301086.

It is an arithmetic number, because the mean of its divisors is an integer number (1172816896).

Almost surely, 2^4544665441 is an apocalyptic number.

It is an amenable number.

4544665441 is a deficient number, since it is larger than the sum of its proper divisors (146602143).

4544665441 is a wasteful number, since it uses less digits than its factorization.

4544665441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146602142.

The product of its digits is 921600, while the sum is 43.

The square root of 4544665441 is about 67414.1338370523. The cubic root of 4544665441 is about 1656.4079488128.

The spelling of 4544665441 in words is "four billion, five hundred forty-four million, six hundred sixty-five thousand, four hundred forty-one".