531542344342 has 32 divisors (see below), whose sum is σ = 859739886432. Its totient is φ = 245562898944.

The previous prime is 531542344339. The next prime is 531542344357. The reversal of 531542344342 is 243443245135.

It is a junction number, because it is equal to n+sod(n) for n = 531542344295 and 531542344304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269268 + ... + 1065640.

It is an arithmetic number, because the mean of its divisors is an integer number (26866871451).

Almost surely, 2^531542344342 is an apocalyptic number.

531542344342 is a deficient number, since it is larger than the sum of its proper divisors (328197542090).

531542344342 is a wasteful number, since it uses less digits than its factorization.

531542344342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796752.

The product of its digits is 691200, while the sum is 40.

Adding to 531542344342 its reverse (243443245135), we get a palindrome (774985589477).

The spelling of 531542344342 in words is "five hundred thirty-one billion, five hundred forty-two million, three hundred forty-four thousand, three hundred forty-two".