78878587610317 has 8 divisors (see below), whose sum is σ = 86099309917920. Its totient is φ = 71666188905360.

The previous prime is 78878587610261. The next prime is 78878587610327. The reversal of 78878587610317 is 71301678587887.

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 78878587610317 - 2²⁷ = 78878453392589 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 (78878587610327) 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, 2080880842 + ... + 2080918747.

It is an arithmetic number, because the mean of its divisors is an integer number (10762413739740).

Almost surely, 2^{78878587610317} is an apocalyptic number.

It is an amenable number.

78878587610317 is a deficient number, since it is larger than the sum of its proper divisors (7220722307603).

78878587610317 is a wasteful number, since it uses less digits than its factorization.

78878587610317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4161801323.

The product of its (nonzero) digits is 885104640, while the sum is 76.

The spelling of 78878587610317 in words is "seventy-eight trillion, eight hundred seventy-eight billion, five hundred eighty-seven million, six hundred ten thousand, three hundred seventeen".