531713226318 has 16 divisors (see below), whose sum is σ = 1063477855440. Its totient is φ = 177229174976.

The previous prime is 531713226313. The next prime is 531713226379. The reversal of 531713226318 is 813622317135.

It is a self number, because there is not a number n which added to its sum of digits gives 531713226318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531713226313) 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, 2006655 + ... + 2256122.

It is an arithmetic number, because the mean of its divisors is an integer number (66467365965).

Almost surely, 2^531713226318 is an apocalyptic number.

531713226318 is an abundant number, since it is smaller than the sum of its proper divisors (531764629122).

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

531713226318 is a wasteful number, since it uses less digits than its factorization.

531713226318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4283571.

The product of its digits is 181440, while the sum is 42.

The spelling of 531713226318 in words is "five hundred thirty-one billion, seven hundred thirteen million, two hundred twenty-six thousand, three hundred eighteen".