171388117734 has 32 divisors (see below), whose sum is σ = 345012541440. Its totient is φ = 56756767392.

The previous prime is 171388117727. The next prime is 171388117781. The reversal of 171388117734 is 437711883171.

It is a happy number.

171388117734 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9696597 + ... + 9714255.

It is an arithmetic number, because the mean of its divisors is an integer number (10781641920).

Almost surely, 2^171388117734 is an apocalyptic number.

171388117734 is an abundant number, since it is smaller than the sum of its proper divisors (173624423706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171388117734 is a wasteful number, since it uses less digits than its factorization.

171388117734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28124.

The product of its digits is 790272, while the sum is 51.

The spelling of 171388117734 in words is "one hundred seventy-one billion, three hundred eighty-eight million, one hundred seventeen thousand, seven hundred thirty-four".