171356739475 has 6 divisors (see below), whose sum is σ = 212482356980. Its totient is φ = 137085391560.

The previous prime is 171356739401. The next prime is 171356739509. The reversal of 171356739475 is 574937653171.

It is not a de Polignac number, because 171356739475 - 2¹⁹ = 171356215187 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3427134765 + ... + 3427134814.

Almost surely, 2^171356739475 is an apocalyptic number.

171356739475 is a deficient number, since it is larger than the sum of its proper divisors (41125617505).

171356739475 is an equidigital number, since it uses as much as digits as its factorization.

171356739475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6854269589 (or 6854269584 counting only the distinct ones).

The product of its digits is 16669800, while the sum is 58.

The spelling of 171356739475 in words is "one hundred seventy-one billion, three hundred fifty-six million, seven hundred thirty-nine thousand, four hundred seventy-five".