8848172538509 has 2 divisors, whose sum is σ = 8848172538510. Its totient is φ = 8848172538508.

The previous prime is 8848172538493. The next prime is 8848172538511. The reversal of 8848172538509 is 9058352718488.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6416063670025 + 2432108868484 = 2532995^2 + 1559522^2 .

It is a cyclic number.

It is not a de Polignac number, because 8848172538509 - 2⁴ = 8848172538493 is a prime.

Together with 8848172538511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8848172538589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4424086269254 + 4424086269255.

It is an arithmetic number, because the mean of its divisors is an integer number (4424086269255).

Almost surely, 2^{8848172538509} is an apocalyptic number.

It is an amenable number.

8848172538509 is a deficient number, since it is larger than the sum of its proper divisors (1).

8848172538509 is an equidigital number, since it uses as much as digits as its factorization.

8848172538509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 154828800, while the sum is 68.

The spelling of 8848172538509 in words is "eight trillion, eight hundred forty-eight billion, one hundred seventy-two million, five hundred thirty-eight thousand, five hundred nine".