171831340680 has 64 divisors (see below), whose sum is σ = 515598739200. Its totient is φ = 45812382720.

The previous prime is 171831340631. The next prime is 171831340697. The reversal of 171831340680 is 86043138171.

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, 458145 + ... + 744015.

It is an arithmetic number, because the mean of its divisors is an integer number (8056230300).

Almost surely, 2^171831340680 is an apocalyptic number.

171831340680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

171831340680 is an abundant number, since it is smaller than the sum of its proper divisors (343767398520).

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

171831340680 is a wasteful number, since it uses less digits than its factorization.

171831340680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290894 (or 290890 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 171831340680 in words is "one hundred seventy-one billion, eight hundred thirty-one million, three hundred forty thousand, six hundred eighty".