12658070617 has 4 divisors (see below), whose sum is σ = 13324284880. Its totient is φ = 11991856356.

The previous prime is 12658070603. The next prime is 12658070627. The reversal of 12658070617 is 71607085621.

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: 71607085621 = 29 ⋅2469209849.

It is a cyclic number.

It is not a de Polignac number, because 12658070617 - 2⁷ = 12658070489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12658070627) 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 3 ways as a sum of consecutive naturals, for example, 333107103 + ... + 333107140.

It is an arithmetic number, because the mean of its divisors is an integer number (3331071220).

Almost surely, 2^12658070617 is an apocalyptic number.

It is an amenable number.

12658070617 is a deficient number, since it is larger than the sum of its proper divisors (666214263).

12658070617 is an equidigital number, since it uses as much as digits as its factorization.

12658070617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666214262.

The product of its (nonzero) digits is 141120, while the sum is 43.

The spelling of 12658070617 in words is "twelve billion, six hundred fifty-eight million, seventy thousand, six hundred seventeen".