531404535042 has 32 divisors (see below), whose sum is σ = 1185603773760. Its totient is φ = 176429124000.

The previous prime is 531404535037. The next prime is 531404535059. The reversal of 531404535042 is 240535404135.

531404535042 is a `hidden beast` number, since 5 + 3 + 140 + 4 + 5 + 3 + 504 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 531404534988 and 531404535006.

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, 19589683 + ... + 19616790.

It is an arithmetic number, because the mean of its divisors is an integer number (37050117930).

Almost surely, 2^531404535042 is an apocalyptic number.

531404535042 is an abundant number, since it is smaller than the sum of its proper divisors (654199238718).

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

531404535042 is a wasteful number, since it uses less digits than its factorization.

531404535042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39206735 (or 39206729 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 531404535042 its reverse (240535404135), we get a palindrome (771939939177).

The spelling of 531404535042 in words is "five hundred thirty-one billion, four hundred four million, five hundred thirty-five thousand, forty-two".