4544442145 has 8 divisors (see below), whose sum is σ = 5519033856. Its totient is φ = 3591751536.

The previous prime is 4544442139. The next prime is 4544442167. The reversal of 4544442145 is 5412444454.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4544442145 - 2⁹ = 4544441633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5474817 + ... + 5475646.

It is an arithmetic number, because the mean of its divisors is an integer number (689879232).

Almost surely, 2^4544442145 is an apocalyptic number.

It is an amenable number.

4544442145 is a deficient number, since it is larger than the sum of its proper divisors (974591711).

4544442145 is a wasteful number, since it uses less digits than its factorization.

4544442145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10950551.

The product of its digits is 204800, while the sum is 37.

The square root of 4544442145 is about 67412.4776654886. The cubic root of 4544442145 is about 1656.3808199125.

Adding to 4544442145 its reverse (5412444454), we get a palindrome (9956886599).

The spelling of 4544442145 in words is "four billion, five hundred forty-four million, four hundred forty-two thousand, one hundred forty-five".