197328743089 has 9 divisors (see below), whose sum is σ = 199893742713. Its totient is φ = 194796261972.

The previous prime is 197328743081. The next prime is 197328743123. The reversal of 197328743089 is 980347823791.

The square root of 197328743089 is 444217.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 197328743089 - 2³ = 197328743081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197328743081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 35090332 + ... + 35095954.

It is an arithmetic number, because the mean of its divisors is an integer number (22210415857).

Almost surely, 2^197328743089 is an apocalyptic number.

197328743089 is the 444217-th square number.

197328743089 is the 222109-th centered octagonal number.

It is an amenable number.

197328743089 is a deficient number, since it is larger than the sum of its proper divisors (2564999624).

197328743089 is an frugal number, since it uses more digits than its factorization.

197328743089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11404 (or 5702 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 197328743089 in words is "one hundred ninety-seven billion, three hundred twenty-eight million, seven hundred forty-three thousand, eighty-nine".