172943123163 has 8 divisors (see below), whose sum is σ = 230613614400. Its totient is φ = 115284023688.

The previous prime is 172943123153. The next prime is 172943123201. The reversal of 172943123163 is 361321349271.

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

It is not a de Polignac number, because 172943123163 - 2¹⁴ = 172943106779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172943123153) 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 7 ways as a sum of consecutive naturals, for example, 2812453 + ... + 2873286.

It is an arithmetic number, because the mean of its divisors is an integer number (28826701800).

Almost surely, 2^172943123163 is an apocalyptic number.

172943123163 is a deficient number, since it is larger than the sum of its proper divisors (57670491237).

172943123163 is a wasteful number, since it uses less digits than its factorization.

172943123163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5695881.

The product of its digits is 163296, while the sum is 42.

The spelling of 172943123163 in words is "one hundred seventy-two billion, nine hundred forty-three million, one hundred twenty-three thousand, one hundred sixty-three".