172532417848321 has 4 divisors (see below), whose sum is σ = 172544398448644. Its totient is φ = 172520437248000.

The previous prime is 172532417848283. The next prime is 172532417848331. The reversal of 172532417848321 is 123848714235271.

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 113946252542721 + 58586165305600 = 10674561^2 + 7654160^2 .

It is a cyclic number.

It is not a de Polignac number, because 172532417848321 - 2¹⁵ = 172532417815553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172532417848331) 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, 5990278560 + ... + 5990307361.

It is an arithmetic number, because the mean of its divisors is an integer number (43136099612161).

Almost surely, 2^{172532417848321} is an apocalyptic number.

It is an amenable number.

172532417848321 is a deficient number, since it is larger than the sum of its proper divisors (11980600323).

172532417848321 is a wasteful number, since it uses less digits than its factorization.

172532417848321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11980600322.

The product of its digits is 18063360, while the sum is 58.

The spelling of 172532417848321 in words is "one hundred seventy-two trillion, five hundred thirty-two billion, four hundred seventeen million, eight hundred forty-eight thousand, three hundred twenty-one".