13113878613 has 8 divisors (see below), whose sum is σ = 19074732576. Its totient is φ = 7947805200.

The previous prime is 13113878597. The next prime is 13113878627. The reversal of 13113878613 is 31687831131.

13113878613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13113878613 - 2⁴ = 13113878597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113878663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198695098 + ... + 198695163.

It is an arithmetic number, because the mean of its divisors is an integer number (2384341572).

Almost surely, 2^13113878613 is an apocalyptic number.

It is an amenable number.

13113878613 is a deficient number, since it is larger than the sum of its proper divisors (5960853963).

13113878613 is a wasteful number, since it uses less digits than its factorization.

13113878613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397390275.

The product of its digits is 72576, while the sum is 42.

The spelling of 13113878613 in words is "thirteen billion, one hundred thirteen million, eight hundred seventy-eight thousand, six hundred thirteen".