171457445892 has 48 divisors (see below), whose sum is σ = 400647582720. Its totient is φ = 57069665952.

The previous prime is 171457445849. The next prime is 171457445899. The reversal of 171457445892 is 298544754171.

It is not an unprimeable number, because it can be changed into a prime (171457445899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30295359 + ... + 30301017.

It is an arithmetic number, because the mean of its divisors is an integer number (8346824640).

Almost surely, 2^171457445892 is an apocalyptic number.

171457445892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

171457445892 is an abundant number, since it is smaller than the sum of its proper divisors (229190136828).

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

171457445892 is a wasteful number, since it uses less digits than its factorization.

171457445892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8880 (or 8878 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 57.

The spelling of 171457445892 in words is "one hundred seventy-one billion, four hundred fifty-seven million, four hundred forty-five thousand, eight hundred ninety-two".