172873144307 has 2 divisors, whose sum is σ = 172873144308. Its totient is φ = 172873144306.

The previous prime is 172873144289. The next prime is 172873144309. The reversal of 172873144307 is 703441378271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172873144307 - 2⁶ = 172873144243 is a prime.

Together with 172873144309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (172873144309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86436572153 + 86436572154.

It is an arithmetic number, because the mean of its divisors is an integer number (86436572154).

Almost surely, 2^172873144307 is an apocalyptic number.

172873144307 is a deficient number, since it is larger than the sum of its proper divisors (1).

172873144307 is an equidigital number, since it uses as much as digits as its factorization.

172873144307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 790272, while the sum is 47.

The spelling of 172873144307 in words is "one hundred seventy-two billion, eight hundred seventy-three million, one hundred forty-four thousand, three hundred seven".