12352456717 has 4 divisors (see below), whose sum is σ = 13079071836. Its totient is φ = 11625841600.

The previous prime is 12352456703. The next prime is 12352456729. The reversal of 12352456717 is 71765425321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71765425321 = 47 ⋅1526923943.

It can be written as a sum of positive squares in 2 ways, for example, as 11094619561 + 1257837156 = 105331^2 + 35466^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12352456717 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 (12352456517) 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, 363307534 + ... + 363307567.

It is an arithmetic number, because the mean of its divisors is an integer number (3269767959).

Almost surely, 2^12352456717 is an apocalyptic number.

12352456717 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12352456717 is a deficient number, since it is larger than the sum of its proper divisors (726615119).

12352456717 is an equidigital number, since it uses as much as digits as its factorization.

12352456717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726615118.

The product of its digits is 352800, while the sum is 43.

The spelling of 12352456717 in words is "twelve billion, three hundred fifty-two million, four hundred fifty-six thousand, seven hundred seventeen".