613136334673 has 4 divisors (see below), whose sum is σ = 613208299108. Its totient is φ = 613064370240.

The previous prime is 613136334667. The next prime is 613136334683. The reversal of 613136334673 is 376433631316.

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 147293228944 + 465843105729 = 383788^2 + 682527^2 .

It is a cyclic number.

It is not a de Polignac number, because 613136334673 - 2²⁹ = 612599463761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613136334653) 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, 35969436 + ... + 35986477.

It is an arithmetic number, because the mean of its divisors is an integer number (153302074777).

Almost surely, 2^613136334673 is an apocalyptic number.

It is an amenable number.

613136334673 is a deficient number, since it is larger than the sum of its proper divisors (71964435).

613136334673 is an equidigital number, since it uses as much as digits as its factorization.

613136334673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71964434.

The product of its digits is 1469664, while the sum is 46.

Adding to 613136334673 its reverse (376433631316), we get a palindrome (989569965989).

The spelling of 613136334673 in words is "six hundred thirteen billion, one hundred thirty-six million, three hundred thirty-four thousand, six hundred seventy-three".