531643473617 has 16 divisors (see below), whose sum is σ = 558920390400. Its totient is φ = 505009115520.

The previous prime is 531643473611. The next prime is 531643473623. The reversal of 531643473617 is 716374346135.

It is an interprime number because it is at equal distance from previous prime (531643473611) and next prime (531643473623).

It is a cyclic number.

It is not a de Polignac number, because 531643473617 - 2⁶ = 531643473553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531643473611) 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 15 ways as a sum of consecutive naturals, for example, 230858 + ... + 1056684.

It is an arithmetic number, because the mean of its divisors is an integer number (34932524400).

Almost surely, 2^531643473617 is an apocalyptic number.

It is an amenable number.

531643473617 is a deficient number, since it is larger than the sum of its proper divisors (27276916783).

531643473617 is a wasteful number, since it uses less digits than its factorization.

531643473617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826216.

The product of its digits is 3810240, while the sum is 50.

The spelling of 531643473617 in words is "five hundred thirty-one billion, six hundred forty-three million, four hundred seventy-three thousand, six hundred seventeen".