228321143845 has 8 divisors (see below), whose sum is σ = 276076864800. Its totient is φ = 181262586960.

The previous prime is 228321143821. The next prime is 228321143851. The reversal of 228321143845 is 548341123822.

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

It is not a de Polignac number, because 228321143845 - 2⁷ = 228321143717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174290295 + ... + 174291604.

It is an arithmetic number, because the mean of its divisors is an integer number (34509608100).

Almost surely, 2^228321143845 is an apocalyptic number.

It is an amenable number.

228321143845 is a deficient number, since it is larger than the sum of its proper divisors (47755720955).

228321143845 is a wasteful number, since it uses less digits than its factorization.

228321143845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348582035.

The product of its digits is 368640, while the sum is 43.

The spelling of 228321143845 in words is "two hundred twenty-eight billion, three hundred twenty-one million, one hundred forty-three thousand, eight hundred forty-five".