878117035142613 has 24 divisors (see below), whose sum is σ = 1361984825060928. Its totient is φ = 501778442960256.

The previous prime is 878117035142569. The next prime is 878117035142621. The reversal of 878117035142613 is 316241530711878.

It is a happy number.

It is not a de Polignac number, because 878117035142613 - 2¹³ = 878117035134421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878117035142623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11177245 + ... + 43372397.

It is an arithmetic number, because the mean of its divisors is an integer number (56749367710872).

Almost surely, 2^{878117035142613} is an apocalyptic number.

It is an amenable number.

878117035142613 is a deficient number, since it is larger than the sum of its proper divisors (483867789918315).

878117035142613 is a wasteful number, since it uses less digits than its factorization.

878117035142613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32380713 (or 32380706 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 57.

The spelling of 878117035142613 in words is "eight hundred seventy-eight trillion, one hundred seventeen billion, thirty-five million, one hundred forty-two thousand, six hundred thirteen".