173040868905 has 16 divisors (see below), whose sum is σ = 282756144384. Its totient is φ = 90324878720.

The previous prime is 173040868901. The next prime is 173040868921. The reversal of 173040868905 is 509868040371.

It is not a de Polignac number, because 173040868905 - 2² = 173040868901 is a prime.

It is a super-2 number, since 2×173040868905² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (173040868901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122723316 + ... + 122724725.

It is an arithmetic number, because the mean of its divisors is an integer number (17672259024).

Almost surely, 2^173040868905 is an apocalyptic number.

173040868905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

173040868905 is a deficient number, since it is larger than the sum of its proper divisors (109715275479).

173040868905 is a wasteful number, since it uses less digits than its factorization.

173040868905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245448096.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 173040868905 in words is "one hundred seventy-three billion, forty million, eight hundred sixty-eight thousand, nine hundred five".