12972268190517 has 4 divisors (see below), whose sum is σ = 17296357587360. Its totient is φ = 8648178793676.

The previous prime is 12972268190501. The next prime is 12972268190549. The reversal of 12972268190517 is 71509186227921.

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.

It is a cyclic number.

It is not a de Polignac number, because 12972268190517 - 2⁴ = 12972268190501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12972268190017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2162044698417 + ... + 2162044698422.

It is an arithmetic number, because the mean of its divisors is an integer number (4324089396840).

Almost surely, 2^{12972268190517} is an apocalyptic number.

It is an amenable number.

12972268190517 is a deficient number, since it is larger than the sum of its proper divisors (4324089396843).

12972268190517 is an equidigital number, since it uses as much as digits as its factorization.

12972268190517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324089396842.

The product of its (nonzero) digits is 7620480, while the sum is 60.

The spelling of 12972268190517 in words is "twelve trillion, nine hundred seventy-two billion, two hundred sixty-eight million, one hundred ninety thousand, five hundred seventeen".