531344443136 has 36 divisors (see below), whose sum is σ = 1142198969352. Its totient is φ = 245235895296.

The previous prime is 531344443129. The next prime is 531344443141. The reversal of 531344443136 is 631344443135.

It is a junction number, because it is equal to n+sod(n) for n = 531344443093 and 531344443102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79826066 + ... + 79832721.

Almost surely, 2^531344443136 is an apocalyptic number.

It is an amenable number.

531344443136 is an abundant number, since it is smaller than the sum of its proper divisors (610854526216).

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

531344443136 is a wasteful number, since it uses less digits than its factorization.

531344443136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159658816 (or 159658802 counting only the distinct ones).

The product of its digits is 622080, while the sum is 41.

Subtracting 531344443136 from its reverse (631344443135), we obtain a palindrome (99999999999).

The spelling of 531344443136 in words is "five hundred thirty-one billion, three hundred forty-four million, four hundred forty-three thousand, one hundred thirty-six".