197339970817 has 8 divisors (see below), whose sum is σ = 215359176960. Its totient is φ = 179333966160.

The previous prime is 197339970761. The next prime is 197339970847. The reversal of 197339970817 is 718079933791.

197339970817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 197339970817 - 2⁷ = 197339970689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197339970847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3269098 + ... + 3328915.

It is an arithmetic number, because the mean of its divisors is an integer number (26919897120).

Almost surely, 2^197339970817 is an apocalyptic number.

It is an amenable number.

197339970817 is a deficient number, since it is larger than the sum of its proper divisors (18019206143).

197339970817 is a wasteful number, since it uses less digits than its factorization.

197339970817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6600743.

The product of its (nonzero) digits is 18003384, while the sum is 64.

It can be divided in two parts, 197339 and 970817, that added together give a triangular number (1168156 = T₁₅₂₈).

The spelling of 197339970817 in words is "one hundred ninety-seven billion, three hundred thirty-nine million, nine hundred seventy thousand, eight hundred seventeen".