173172885742 has 8 divisors (see below), whose sum is σ = 259772893632. Its totient is φ = 86581921200.

The previous prime is 173172885737. The next prime is 173172885791. The reversal of 173172885742 is 247588271371.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 2212759 + ... + 2289682.

It is an arithmetic number, because the mean of its divisors is an integer number (32471611704).

Almost surely, 2^173172885742 is an apocalyptic number.

173172885742 is a deficient number, since it is larger than the sum of its proper divisors (86600007890).

173172885742 is a wasteful number, since it uses less digits than its factorization.

173172885742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521674.

The product of its digits is 5268480, while the sum is 55.

The spelling of 173172885742 in words is "one hundred seventy-three billion, one hundred seventy-two million, eight hundred eighty-five thousand, seven hundred forty-two".