171273380000 has 120 divisors (see below), whose sum is σ = 426096995940. Its totient is φ = 67738880000.

The previous prime is 171273379987. The next prime is 171273380011. The reversal of 171273380000 is 83372171.

It can be written as a sum of positive squares in 10 ways, for example, as 1460156944 + 169813223056 = 38212^2 + 412084^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1731890 + ... + 1828110.

Almost surely, 2^171273380000 is an apocalyptic number.

171273380000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171273380000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213048497970).

171273380000 is an abundant number, since it is smaller than the sum of its proper divisors (254823615940).

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

171273380000 is an frugal number, since it uses more digits than its factorization.

171273380000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96340 (or 96317 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The spelling of 171273380000 in words is "one hundred seventy-one billion, two hundred seventy-three million, three hundred eighty thousand".