320218228627 has 4 divisors (see below), whose sum is σ = 349328976696. Its totient is φ = 291107480560.

The previous prime is 320218228597. The next prime is 320218228637. The reversal of 320218228627 is 726822812023.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320218228627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320218228637) 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, 14555374018 + ... + 14555374039.

It is an arithmetic number, because the mean of its divisors is an integer number (87332244174).

Almost surely, 2^320218228627 is an apocalyptic number.

320218228627 is a deficient number, since it is larger than the sum of its proper divisors (29110748069).

320218228627 is a wasteful number, since it uses less digits than its factorization.

320218228627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29110748068.

The product of its (nonzero) digits is 258048, while the sum is 43.

It can be divided in two parts, 320218 and 228627, that added together give a palindrome (548845).

The spelling of 320218228627 in words is "three hundred twenty billion, two hundred eighteen million, two hundred twenty-eight thousand, six hundred twenty-seven".