171042873718 has 4 divisors (see below), whose sum is σ = 256564310580. Its totient is φ = 85521436858.

The previous prime is 171042873679. The next prime is 171042873719. The reversal of 171042873718 is 817378240171.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 817378240171 = 12917 ⋅63279263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171042873719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42760718428 + ... + 42760718431.

It is an arithmetic number, because the mean of its divisors is an integer number (64141077645).

Almost surely, 2^171042873718 is an apocalyptic number.

171042873718 is a deficient number, since it is larger than the sum of its proper divisors (85521436862).

171042873718 is an equidigital number, since it uses as much as digits as its factorization.

171042873718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85521436861.

The product of its (nonzero) digits is 526848, while the sum is 49.

The spelling of 171042873718 in words is "one hundred seventy-one billion, forty-two million, eight hundred seventy-three thousand, seven hundred eighteen".