536421540509 has 2 divisors, whose sum is σ = 536421540510. Its totient is φ = 536421540508.

The previous prime is 536421540497. The next prime is 536421540563. The reversal of 536421540509 is 905045124635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 367656684409 + 168764856100 = 606347^2 + 410810^2 .

It is a cyclic number.

It is not a de Polignac number, because 536421540509 - 2⁴ = 536421540493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 536421540509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (536421540409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268210770254 + 268210770255.

It is an arithmetic number, because the mean of its divisors is an integer number (268210770255).

Almost surely, 2^536421540509 is an apocalyptic number.

It is an amenable number.

536421540509 is a deficient number, since it is larger than the sum of its proper divisors (1).

536421540509 is an equidigital number, since it uses as much as digits as its factorization.

536421540509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 536421540509 in words is "five hundred thirty-six billion, four hundred twenty-one million, five hundred forty thousand, five hundred nine".