613182665213 has 4 divisors (see below), whose sum is σ = 613209890748. Its totient is φ = 613155439680.

The previous prime is 613182665209. The next prime is 613182665219. The reversal of 613182665213 is 312566281316.

It is a happy number.

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 303642877444 + 309539787769 = 551038^2 + 556363^2 .

It is a cyclic number.

It is not a de Polignac number, because 613182665213 - 2² = 613182665209 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 (613182665219) 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, 13578956 + ... + 13624037.

It is an arithmetic number, because the mean of its divisors is an integer number (153302472687).

Almost surely, 2^613182665213 is an apocalyptic number.

It is an amenable number.

613182665213 is a deficient number, since it is larger than the sum of its proper divisors (27225535).

613182665213 is a wasteful number, since it uses less digits than its factorization.

613182665213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27225534.

The product of its digits is 311040, while the sum is 44.

The spelling of 613182665213 in words is "six hundred thirteen billion, one hundred eighty-two million, six hundred sixty-five thousand, two hundred thirteen".