52171723365 has 16 divisors (see below), whose sum is σ = 83505523200. Its totient is φ = 27814663872.

The previous prime is 52171723361. The next prime is 52171723381. The reversal of 52171723365 is 56332717125.

It is not a de Polignac number, because 52171723365 - 2² = 52171723361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52171723361) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 598810 + ... + 680379.

It is an arithmetic number, because the mean of its divisors is an integer number (5219095200).

Almost surely, 2^52171723365 is an apocalyptic number.

It is an amenable number.

52171723365 is a deficient number, since it is larger than the sum of its proper divisors (31333799835).

52171723365 is a wasteful number, since it uses less digits than its factorization.

52171723365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281916.

The product of its digits is 264600, while the sum is 42.

The spelling of 52171723365 in words is "fifty-two billion, one hundred seventy-one million, seven hundred twenty-three thousand, three hundred sixty-five".