531412536611773 has 4 divisors (see below), whose sum is σ = 532366598617020. Its totient is φ = 530458474606528.

The previous prime is 531412536611701. The next prime is 531412536611809. The reversal of 531412536611773 is 377116635214135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 249751939745764 + 281660596866009 = 15803542^2 + 16782747^2 .

It is a cyclic number.

It is not a de Polignac number, because 531412536611773 - 2¹³ = 531412536603581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531412536612773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477031001788 + ... + 477031002901.

It is an arithmetic number, because the mean of its divisors is an integer number (133091649654255).

Almost surely, 2^{531412536611773} is an apocalyptic number.

It is an amenable number.

531412536611773 is a deficient number, since it is larger than the sum of its proper divisors (954062005247).

531412536611773 is an equidigital number, since it uses as much as digits as its factorization.

531412536611773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954062005246.

The product of its digits is 9525600, while the sum is 55.

The spelling of 531412536611773 in words is "five hundred thirty-one trillion, four hundred twelve billion, five hundred thirty-six million, six hundred eleven thousand, seven hundred seventy-three".