1613364120909 has 6 divisors (see below), whose sum is σ = 2330414841326. Its totient is φ = 1075576080600.

The previous prime is 1613364120899. The next prime is 1613364120911. The reversal of 1613364120909 is 9090214633161.

1613364120909 is a `hidden beast` number, since 1 + 613 + 3 + 6 + 4 + 1 + 20 + 9 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1582274673225 + 31089447684 = 1257885^2 + 176322^2 .

It is not a de Polignac number, because 1613364120909 - 2³² = 1609069153613 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 (1613364170909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89631340042 + ... + 89631340059.

Almost surely, 2^{1613364120909} is an apocalyptic number.

It is an amenable number.

1613364120909 is a deficient number, since it is larger than the sum of its proper divisors (717050720417).

1613364120909 is a wasteful number, since it uses less digits than its factorization.

1613364120909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179262680107 (or 179262680104 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 1613364120909 in words is "one trillion, six hundred thirteen billion, three hundred sixty-four million, one hundred twenty thousand, nine hundred nine".