12706040717 has 4 divisors (see below), whose sum is σ = 13001530080. Its totient is φ = 12410551356.

The previous prime is 12706040713. The next prime is 12706040731. The reversal of 12706040717 is 71704060721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71704060721 = 20663 ⋅3470167.

It is a cyclic number.

It is not a de Polignac number, because 12706040717 - 2² = 12706040713 is a prime.

It is a super-2 number, since 2×12706040717² (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 (12706040713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147744617 + ... + 147744702.

It is an arithmetic number, because the mean of its divisors is an integer number (3250382520).

Almost surely, 2^12706040717 is an apocalyptic number.

It is an amenable number.

12706040717 is a deficient number, since it is larger than the sum of its proper divisors (295489363).

12706040717 is an equidigital number, since it uses as much as digits as its factorization.

12706040717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295489362.

The product of its (nonzero) digits is 16464, while the sum is 35.

The spelling of 12706040717 in words is "twelve billion, seven hundred six million, forty thousand, seven hundred seventeen".