197688299813 has 8 divisors (see below), whose sum is σ = 204424514208. Its totient is φ = 191063427984.

The previous prime is 197688299801. The next prime is 197688299863. The reversal of 197688299813 is 318992886791.

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 197688299813 - 2⁴ = 197688299797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197688299863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27832031 + ... + 27839132.

It is an arithmetic number, because the mean of its divisors is an integer number (25553064276).

Almost surely, 2^197688299813 is an apocalyptic number.

It is an amenable number.

197688299813 is a deficient number, since it is larger than the sum of its proper divisors (6736214395).

197688299813 is an equidigital number, since it uses as much as digits as its factorization.

197688299813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55671283.

The product of its digits is 94058496, while the sum is 71.

The spelling of 197688299813 in words is "one hundred ninety-seven billion, six hundred eighty-eight million, two hundred ninety-nine thousand, eight hundred thirteen".