12715607717 has 8 divisors (see below), whose sum is σ = 12771712536. Its totient is φ = 12659576832.

The previous prime is 12715607689. The next prime is 12715607741. The reversal of 12715607717 is 71770651721.

It can be written as a sum of positive squares in 4 ways, for example, as 8225401636 + 4490206081 = 90694^2 + 67009^2 .

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 12715607717 - 2¹⁰ = 12715606693 is a prime.

It is a super-2 number, since 2×12715607717² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12715607117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341573 + ... + 376965.

It is an arithmetic number, because the mean of its divisors is an integer number (1596464067).

Almost surely, 2^12715607717 is an apocalyptic number.

It is an amenable number.

12715607717 is a deficient number, since it is larger than the sum of its proper divisors (56104819).

12715607717 is a wasteful number, since it uses less digits than its factorization.

12715607717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36967.

The product of its (nonzero) digits is 144060, while the sum is 44.

The spelling of 12715607717 in words is "twelve billion, seven hundred fifteen million, six hundred seven thousand, seven hundred seventeen".