531434914509 has 8 divisors (see below), whose sum is σ = 708654425152. Its totient is φ = 354252673440.

The previous prime is 531434914487. The next prime is 531434914513. The reversal of 531434914509 is 905419434135.

It is a happy number.

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

It is not a de Polignac number, because 531434914509 - 2¹⁵ = 531434881741 is a prime.

It is a super-2 number, since 2×531434914509² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531434914579) 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, 9284104 + ... + 9341169.

It is an arithmetic number, because the mean of its divisors is an integer number (88581803144).

Almost surely, 2^531434914509 is an apocalyptic number.

It is an amenable number.

531434914509 is a deficient number, since it is larger than the sum of its proper divisors (177219510643).

531434914509 is a wasteful number, since it uses less digits than its factorization.

531434914509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18634787.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 531434914509 in words is "five hundred thirty-one billion, four hundred thirty-four million, nine hundred fourteen thousand, five hundred nine".