172493456271 has 24 divisors (see below), whose sum is σ = 239464317312. Its totient is φ = 110436346800.

The previous prime is 172493456237. The next prime is 172493456273. The reversal of 172493456271 is 172654394271.

It is a happy number.

It is not a de Polignac number, because 172493456271 - 2⁶ = 172493456207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172493456273) 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 23 ways as a sum of consecutive naturals, for example, 149310 + ... + 606036.

It is an arithmetic number, because the mean of its divisors is an integer number (9977679888).

Almost surely, 2^172493456271 is an apocalyptic number.

172493456271 is a deficient number, since it is larger than the sum of its proper divisors (66970861041).

172493456271 is a wasteful number, since it uses less digits than its factorization.

172493456271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456923 (or 456892 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The spelling of 172493456271 in words is "one hundred seventy-two billion, four hundred ninety-three million, four hundred fifty-six thousand, two hundred seventy-one".