4481272521 has 12 divisors (see below), whose sum is σ = 7061399280. Its totient is φ = 2715922680.

The previous prime is 4481272511. The next prime is 4481272529. The reversal of 4481272521 is 1252721844.

4481272521 is a `hidden beast` number, since 4 + 4 + 8 + 127 + 2 + 521 = 666.

It is not a de Polignac number, because 4481272521 - 2¹⁷ = 4481141449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4481272529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22632591 + ... + 22632788.

It is an arithmetic number, because the mean of its divisors is an integer number (588449940).

Almost surely, 2^4481272521 is an apocalyptic number.

It is an amenable number.

4481272521 is a deficient number, since it is larger than the sum of its proper divisors (2580126759).

4481272521 is a wasteful number, since it uses less digits than its factorization.

4481272521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45265396 (or 45265393 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 4481272521 is about 66942.3074071995. The cubic root of 4481272521 is about 1648.6701891383.

The spelling of 4481272521 in words is "four billion, four hundred eighty-one million, two hundred seventy-two thousand, five hundred twenty-one".