173900344973 has 4 divisors (see below), whose sum is σ = 174034425180. Its totient is φ = 173766264768.

The previous prime is 173900344963. The next prime is 173900344991. The reversal of 173900344973 is 379443009371.

It is a happy number.

173900344973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 167967186244 + 5933158729 = 409838^2 + 77027^2 .

It is a cyclic number.

It is not a de Polignac number, because 173900344973 - 2¹⁶ = 173900279437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173900344963) 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, 67038158 + ... + 67040751.

It is an arithmetic number, because the mean of its divisors is an integer number (43508606295).

Almost surely, 2^173900344973 is an apocalyptic number.

It is an amenable number.

173900344973 is a deficient number, since it is larger than the sum of its proper divisors (134080207).

173900344973 is a wasteful number, since it uses less digits than its factorization.

173900344973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134080206.

The product of its (nonzero) digits is 1714608, while the sum is 50.

The spelling of 173900344973 in words is "one hundred seventy-three billion, nine hundred million, three hundred forty-four thousand, nine hundred seventy-three".