531342670073 has 4 divisors (see below), whose sum is σ = 549664831140. Its totient is φ = 513020509008.

The previous prime is 531342670039. The next prime is 531342670153. The reversal of 531342670073 is 370076243135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 370076243135 = 5 ⋅74015248627.

It can be written as a sum of positive squares in 2 ways, for example, as 442427183104 + 88915486969 = 665152^2 + 298187^2 .

It is a cyclic number.

It is not a de Polignac number, because 531342670073 - 2²⁰ = 531341621497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 531342670073.

It is not an unprimeable number, because it can be changed into a prime (531342670003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9161080490 + ... + 9161080547.

It is an arithmetic number, because the mean of its divisors is an integer number (137416207785).

Almost surely, 2^531342670073 is an apocalyptic number.

It is an amenable number.

531342670073 is a deficient number, since it is larger than the sum of its proper divisors (18322161067).

531342670073 is a wasteful number, since it uses less digits than its factorization.

531342670073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18322161066.

The product of its (nonzero) digits is 317520, while the sum is 41.

The spelling of 531342670073 in words is "five hundred thirty-one billion, three hundred forty-two million, six hundred seventy thousand, seventy-three".