173135413065889 has 4 divisors (see below), whose sum is σ = 173135538565524. Its totient is φ = 173135287566256.

The previous prime is 173135413065887. The next prime is 173135413065899. The reversal of 173135413065889 is 988560314531371.

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 112942332169489 + 60193080896400 = 10627433^2 + 7758420^2 .

It is a cyclic number.

It is not a de Polignac number, because 173135413065889 - 2¹ = 173135413065887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 173135413065889.

It is not an unprimeable number, because it can be changed into a prime (173135413065887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60657202 + ... + 63447355.

It is an arithmetic number, because the mean of its divisors is an integer number (43283884641381).

Almost surely, 2^{173135413065889} is an apocalyptic number.

It is an amenable number.

173135413065889 is a deficient number, since it is larger than the sum of its proper divisors (125499635).

173135413065889 is a wasteful number, since it uses less digits than its factorization.

173135413065889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125499634.

The product of its (nonzero) digits is 65318400, while the sum is 64.

The spelling of 173135413065889 in words is "one hundred seventy-three trillion, one hundred thirty-five billion, four hundred thirteen million, sixty-five thousand, eight hundred eighty-nine".