221483923849 has 8 divisors (see below), whose sum is σ = 226881969120. Its totient is φ = 216140681376.

The previous prime is 221483923841. The next prime is 221483923907. The reversal of 221483923849 is 948329384122.

221483923849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221483923849 - 2³ = 221483923841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221483923849.

It is not an unprimeable number, because it can be changed into a prime (221483923841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13692519 + ... + 13708684.

It is an arithmetic number, because the mean of its divisors is an integer number (28360246140).

Almost surely, 2^221483923849 is an apocalyptic number.

It is an amenable number.

221483923849 is a deficient number, since it is larger than the sum of its proper divisors (5398045271).

221483923849 is a wasteful number, since it uses less digits than its factorization.

221483923849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27401399.

The product of its digits is 5971968, while the sum is 55.

The spelling of 221483923849 in words is "two hundred twenty-one billion, four hundred eighty-three million, nine hundred twenty-three thousand, eight hundred forty-nine".