28322707218 has 16 divisors (see below), whose sum is σ = 61002754176. Its totient is φ = 8714679120.

The previous prime is 28322707211. The next prime is 28322707223. The reversal of 28322707218 is 81270722382.

It is a self number, because there is not a number n which added to its sum of digits gives 28322707218.

It is not an unprimeable number, because it can be changed into a prime (28322707211) 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, 181555738 + ... + 181555893.

It is an arithmetic number, because the mean of its divisors is an integer number (3812672136).

Almost surely, 2^28322707218 is an apocalyptic number.

28322707218 is an abundant number, since it is smaller than the sum of its proper divisors (32680046958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28322707218 is a wasteful number, since it uses less digits than its factorization.

28322707218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363111649.

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 28322707218 in words is "twenty-eight billion, three hundred twenty-two million, seven hundred seven thousand, two hundred eighteen".