273243516013 has 4 divisors (see below), whose sum is σ = 294262248028. Its totient is φ = 252224784000.

The previous prime is 273243516001. The next prime is 273243516089. The reversal of 273243516013 is 310615342372.

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 43623335044 + 229620180969 = 208862^2 + 479187^2 .

It is a cyclic number.

It is not a de Polignac number, because 273243516013 - 2⁵ = 273243515981 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 (273243516913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10509365988 + ... + 10509366013.

It is an arithmetic number, because the mean of its divisors is an integer number (73565562007).

Almost surely, 2^273243516013 is an apocalyptic number.

It is an amenable number.

273243516013 is a deficient number, since it is larger than the sum of its proper divisors (21018732015).

273243516013 is a wasteful number, since it uses less digits than its factorization.

273243516013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21018732014.

The product of its (nonzero) digits is 90720, while the sum is 37.

Adding to 273243516013 its reverse (310615342372), we get a palindrome (583858858385).

The spelling of 273243516013 in words is "two hundred seventy-three billion, two hundred forty-three million, five hundred sixteen thousand, thirteen".