613963409409 has 12 divisors (see below), whose sum is σ = 1013526898176. Its totient is φ = 350836233912.

The previous prime is 613963409377. The next prime is 613963409431. The reversal of 613963409409 is 904904369316.

613963409409 is a `hidden beast` number, since 6 + 139 + 63 + 40 + 9 + 409 = 666.

It is not a de Polignac number, because 613963409409 - 2⁵ = 613963409377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (613963409009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4872725409 + ... + 4872725534.

It is an arithmetic number, because the mean of its divisors is an integer number (84460574848).

Almost surely, 2^613963409409 is an apocalyptic number.

It is an amenable number.

613963409409 is a deficient number, since it is larger than the sum of its proper divisors (399563488767).

613963409409 is a wasteful number, since it uses less digits than its factorization.

613963409409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9745450956 (or 9745450953 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 54.

The spelling of 613963409409 in words is "six hundred thirteen billion, nine hundred sixty-three million, four hundred nine thousand, four hundred nine".