878117237713 has 8 divisors (see below), whose sum is σ = 890528121000. Its totient is φ = 865762896768.

The previous prime is 878117237693. The next prime is 878117237719. The reversal of 878117237713 is 317732711878.

It can be written as a sum of positive squares in 4 ways, for example, as 296471538064 + 581645699649 = 544492^2 + 762657^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 878117237713 - 2⁵ = 878117237681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878117237719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14104306 + ... + 14166427.

It is an arithmetic number, because the mean of its divisors is an integer number (111316015125).

Almost surely, 2^878117237713 is an apocalyptic number.

It is an amenable number.

878117237713 is a deficient number, since it is larger than the sum of its proper divisors (12410883287).

878117237713 is a wasteful number, since it uses less digits than its factorization.

878117237713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28271171.

The product of its digits is 2765952, while the sum is 55.

The spelling of 878117237713 in words is "eight hundred seventy-eight billion, one hundred seventeen million, two hundred thirty-seven thousand, seven hundred thirteen".