197961960347 has 2 divisors, whose sum is σ = 197961960348. Its totient is φ = 197961960346.

The previous prime is 197961960299. The next prime is 197961960401. The reversal of 197961960347 is 743069169791.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 197961960347 - 2¹⁶ = 197961894811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197961960347.

It is not a weakly prime, because it can be changed into another prime (197961966347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98980980173 + 98980980174.

It is an arithmetic number, because the mean of its divisors is an integer number (98980980174).

Almost surely, 2^197961960347 is an apocalyptic number.

197961960347 is a deficient number, since it is larger than the sum of its proper divisors (1).

197961960347 is an equidigital number, since it uses as much as digits as its factorization.

197961960347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15431472, while the sum is 62.

The spelling of 197961960347 in words is "one hundred ninety-seven billion, nine hundred sixty-one million, nine hundred sixty thousand, three hundred forty-seven".