171272670347 has 4 divisors (see below), whose sum is σ = 171273535680. Its totient is φ = 171271805016.

The previous prime is 171272670329. The next prime is 171272670353. The reversal of 171272670347 is 743076272171.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 743076272171 = 119813 ⋅6201967.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171272670347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171272660347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27029 + ... + 585897.

It is an arithmetic number, because the mean of its divisors is an integer number (42818383920).

Almost surely, 2^171272670347 is an apocalyptic number.

171272670347 is a deficient number, since it is larger than the sum of its proper divisors (865333).

171272670347 is an equidigital number, since it uses as much as digits as its factorization.

171272670347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865332.

The product of its (nonzero) digits is 691488, while the sum is 47.

The spelling of 171272670347 in words is "one hundred seventy-one billion, two hundred seventy-two million, six hundred seventy thousand, three hundred forty-seven".