509621712226 has 16 divisors (see below), whose sum is σ = 882980935200. Its totient is φ = 218019983680.

The previous prime is 509621712221. The next prime is 509621712247. The reversal of 509621712226 is 622217126905.

It is not an unprimeable number, because it can be changed into a prime (509621712221) 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, 681312076 + ... + 681312823.

It is an arithmetic number, because the mean of its divisors is an integer number (55186308450).

Almost surely, 2^509621712226 is an apocalyptic number.

509621712226 is a deficient number, since it is larger than the sum of its proper divisors (373359222974).

509621712226 is a wasteful number, since it uses less digits than its factorization.

509621712226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362624929.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 509621712226 in words is "five hundred nine billion, six hundred twenty-one million, seven hundred twelve thousand, two hundred twenty-six".