84664570173 has 8 divisors (see below), whose sum is σ = 116778717600. Its totient is φ = 54496734768.

The previous prime is 84664570163. The next prime is 84664570201. The reversal of 84664570173 is 37107546648.

It is a happy number.

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

It is not a de Polignac number, because 84664570173 - 2¹⁰ = 84664569149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84664570163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486577903 + ... + 486578076.

It is an arithmetic number, because the mean of its divisors is an integer number (14597339700).

Almost surely, 2^84664570173 is an apocalyptic number.

It is an amenable number.

84664570173 is a deficient number, since it is larger than the sum of its proper divisors (32114147427).

84664570173 is a wasteful number, since it uses less digits than its factorization.

84664570173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973156011.

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 84664570173 in words is "eighty-four billion, six hundred sixty-four million, five hundred seventy thousand, one hundred seventy-three".