531405043352 has 8 divisors (see below), whose sum is σ = 996384456300. Its totient is φ = 265702521672.

The previous prime is 531405043339. The next prime is 531405043357. The reversal of 531405043352 is 253340504135.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531405043357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33212815202 + ... + 33212815217.

Almost surely, 2^531405043352 is an apocalyptic number.

It is an amenable number.

531405043352 is a deficient number, since it is larger than the sum of its proper divisors (464979412948).

531405043352 is a wasteful number, since it uses less digits than its factorization.

531405043352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66425630425 (or 66425630421 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 531405043352 its reverse (253340504135), we get a palindrome (784745547487).

The spelling of 531405043352 in words is "five hundred thirty-one billion, four hundred five million, forty-three thousand, three hundred fifty-two".