4881645221 has 8 divisors (see below), whose sum is σ = 4948197888. Its totient is φ = 4815450000.

The previous prime is 4881645193. The next prime is 4881645227. The reversal of 4881645221 is 1225461884.

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 4881645221 - 2¹⁴ = 4881628837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4881645227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61805 + ... + 116546.

It is an arithmetic number, because the mean of its divisors is an integer number (618524736).

Almost surely, 2^4881645221 is an apocalyptic number.

It is an amenable number.

4881645221 is a deficient number, since it is larger than the sum of its proper divisors (66552667).

4881645221 is a wasteful number, since it uses less digits than its factorization.

4881645221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178723.

The product of its digits is 122880, while the sum is 41.

The square root of 4881645221 is about 69868.7714290154. The cubic root of 4881645221 is about 1696.3758110033.

The spelling of 4881645221 in words is "four billion, eight hundred eighty-one million, six hundred forty-five thousand, two hundred twenty-one".