531817000804 has 24 divisors (see below), whose sum is σ = 952368899328. Its totient is φ = 259712191200.

The previous prime is 531817000787. The next prime is 531817000807. The reversal of 531817000804 is 408000718135.

It is not an unprimeable number, because it can be changed into a prime (531817000807) 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 in 7 ways as a sum of consecutive naturals, for example, 4290669 + ... + 4412875.

It is an arithmetic number, because the mean of its divisors is an integer number (39682037472).

Almost surely, 2^531817000804 is an apocalyptic number.

It is an amenable number.

531817000804 is a deficient number, since it is larger than the sum of its proper divisors (420551898524).

531817000804 is a wasteful number, since it uses less digits than its factorization.

With its successor (531817000805) it forms an eRAP, since the sums of their prime factors are consecutive (147555 and 147556).

531817000804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147555 (or 147553 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

Adding to 531817000804 its reverse (408000718135), we get a palindrome (939817718939).

The spelling of 531817000804 in words is "five hundred thirty-one billion, eight hundred seventeen million, eight hundred four", and thus it is an aban number.