228370546447 has 4 divisors (see below), whose sum is σ = 234542723416. Its totient is φ = 222198369480.

The previous prime is 228370546421. The next prime is 228370546457. The reversal of 228370546447 is 744645073822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228370546447 - 2¹⁹ = 228370022159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228370546394 and 228370546403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228370546457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3086088429 + ... + 3086088502.

It is an arithmetic number, because the mean of its divisors is an integer number (58635680854).

Almost surely, 2^228370546447 is an apocalyptic number.

228370546447 is a deficient number, since it is larger than the sum of its proper divisors (6172176969).

228370546447 is an equidigital number, since it uses as much as digits as its factorization.

228370546447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172176968.

The product of its (nonzero) digits is 9031680, while the sum is 52.

The spelling of 228370546447 in words is "two hundred twenty-eight billion, three hundred seventy million, five hundred forty-six thousand, four hundred forty-seven".