197489079130289 has 4 divisors (see below), whose sum is σ = 202826621809524. Its totient is φ = 192151536451056.

The previous prime is 197489079130267. The next prime is 197489079130307. The reversal of 197489079130289 is 982031970984791.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 177724759509025 + 19764319621264 = 13331345^2 + 4445708^2 .

It is a cyclic number.

It is not a de Polignac number, because 197489079130289 - 2³⁶ = 197420359653553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197489079130789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2668771339562 + ... + 2668771339635.

It is an arithmetic number, because the mean of its divisors is an integer number (50706655452381).

Almost surely, 2^{197489079130289} is an apocalyptic number.

It is an amenable number.

197489079130289 is a deficient number, since it is larger than the sum of its proper divisors (5337542679235).

197489079130289 is an equidigital number, since it uses as much as digits as its factorization.

197489079130289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337542679234.

The product of its (nonzero) digits is 493807104, while the sum is 77.

The spelling of 197489079130289 in words is "one hundred ninety-seven trillion, four hundred eighty-nine billion, seventy-nine million, one hundred thirty thousand, two hundred eighty-nine".