78560725317 has 8 divisors (see below), whose sum is σ = 105003742080. Its totient is φ = 52245762720.

The previous prime is 78560725301. The next prime is 78560725337. The reversal of 78560725317 is 71352706587.

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

It is not a de Polignac number, because 78560725317 - 2⁴ = 78560725301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78560725317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78560725337) 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, 32012109 + ... + 32014562.

It is an arithmetic number, because the mean of its divisors is an integer number (13125467760).

Almost surely, 2^78560725317 is an apocalyptic number.

It is an amenable number.

78560725317 is a deficient number, since it is larger than the sum of its proper divisors (26443016763).

78560725317 is a wasteful number, since it uses less digits than its factorization.

78560725317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64027083.

The product of its (nonzero) digits is 2469600, while the sum is 51.

The spelling of 78560725317 in words is "seventy-eight billion, five hundred sixty million, seven hundred twenty-five thousand, three hundred seventeen".