171712473406 has 4 divisors (see below), whose sum is σ = 257568710112. Its totient is φ = 85856236702.

The previous prime is 171712473377. The next prime is 171712473409. The reversal of 171712473406 is 604374217171.

171712473406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171712473409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42928118350 + ... + 42928118353.

It is an arithmetic number, because the mean of its divisors is an integer number (64392177528).

Almost surely, 2^171712473406 is an apocalyptic number.

171712473406 is a deficient number, since it is larger than the sum of its proper divisors (85856236706).

171712473406 is an equidigital number, since it uses as much as digits as its factorization.

171712473406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85856236705.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 171712473406 in words is "one hundred seventy-one billion, seven hundred twelve million, four hundred seventy-three thousand, four hundred six".