173768940955 has 4 divisors (see below), whose sum is σ = 208522729152. Its totient is φ = 139015152760.

The previous prime is 173768940893. The next prime is 173768940959. The reversal of 173768940955 is 559049867371.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 559049867371 = 33107 ⋅16886153.

It is not a de Polignac number, because 173768940955 - 2¹¹ = 173768938907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173768940959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17376894091 + ... + 17376894100.

It is an arithmetic number, because the mean of its divisors is an integer number (52130682288).

Almost surely, 2^173768940955 is an apocalyptic number.

173768940955 is a deficient number, since it is larger than the sum of its proper divisors (34753788197).

173768940955 is an equidigital number, since it uses as much as digits as its factorization.

173768940955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34753788196.

The product of its (nonzero) digits is 57153600, while the sum is 64.

The spelling of 173768940955 in words is "one hundred seventy-three billion, seven hundred sixty-eight million, nine hundred forty thousand, nine hundred fifty-five".