172873144299 has 4 divisors (see below), whose sum is σ = 230497525736. Its totient is φ = 115248762864.

The previous prime is 172873144289. The next prime is 172873144307. The reversal of 172873144299 is 992441378271.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 172873144299 - 2⁸ = 172873144043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172873144259) 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 in 3 ways as a sum of consecutive naturals, for example, 28812190714 + ... + 28812190719.

It is an arithmetic number, because the mean of its divisors is an integer number (57624381434).

Almost surely, 2^172873144299 is an apocalyptic number.

172873144299 is a deficient number, since it is larger than the sum of its proper divisors (57624381437).

172873144299 is an equidigital number, since it uses as much as digits as its factorization.

172873144299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57624381436.

The product of its digits is 6096384, while the sum is 57.

The spelling of 172873144299 in words is "one hundred seventy-two billion, eight hundred seventy-three million, one hundred forty-four thousand, two hundred ninety-nine".