197306386309 has 8 divisors (see below), whose sum is σ = 203701317120. Its totient is φ = 190913343600.

The previous prime is 197306386307. The next prime is 197306386363. The reversal of 197306386309 is 903683603791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 197306386309 - 2¹ = 197306386307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 197306386309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197306386307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258094 + ... + 679135.

It is an arithmetic number, because the mean of its divisors is an integer number (25462664640).

Almost surely, 2^197306386309 is an apocalyptic number.

It is an amenable number.

197306386309 is a deficient number, since it is larger than the sum of its proper divisors (6394930811).

197306386309 is an equidigital number, since it uses as much as digits as its factorization.

197306386309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944051.

The product of its (nonzero) digits is 4408992, while the sum is 55.

The spelling of 197306386309 in words is "one hundred ninety-seven billion, three hundred six million, three hundred eighty-six thousand, three hundred nine".