613116813 has 4 divisors (see below), whose sum is σ = 817489088. Its totient is φ = 408744540.

The previous prime is 613116797. The next prime is 613116821. The reversal of 613116813 is 318611316.

613116813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 613116813 - 2⁴ = 613116797 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 (613116893) 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, 102186133 + ... + 102186138.

It is an arithmetic number, because the mean of its divisors is an integer number (204372272).

Almost surely, 2^613116813 is an apocalyptic number.

It is an amenable number.

613116813 is a deficient number, since it is larger than the sum of its proper divisors (204372275).

613116813 is a wasteful number, since it uses less digits than its factorization.

613116813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204372274.

The product of its digits is 2592, while the sum is 30.

The square root of 613116813 is about 24761.1957102237. The cubic root of 613116813 is about 849.5346070564.

The spelling of 613116813 in words is "six hundred thirteen million, one hundred sixteen thousand, eight hundred thirteen".