531115980217 has 8 divisors (see below), whose sum is σ = 561719075360. Its totient is φ = 500777847360.

The previous prime is 531115980203. The next prime is 531115980299. The reversal of 531115980217 is 712089511135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 531115980217 - 2³¹ = 528968496569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531110980217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66236448 + ... + 66244465.

It is an arithmetic number, because the mean of its divisors is an integer number (70214884420).

Almost surely, 2^531115980217 is an apocalyptic number.

It is an amenable number.

531115980217 is a deficient number, since it is larger than the sum of its proper divisors (30603095143).

531115980217 is a wasteful number, since it uses less digits than its factorization.

531115980217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132481143.

The product of its (nonzero) digits is 75600, while the sum is 43.

The spelling of 531115980217 in words is "five hundred thirty-one billion, one hundred fifteen million, nine hundred eighty thousand, two hundred seventeen".