197020741116949 has 2 divisors, whose sum is σ = 197020741116950. Its totient is φ = 197020741116948.

The previous prime is 197020741116911. The next prime is 197020741116967. The reversal of 197020741116949 is 949611147020791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161254899109924 + 35765842007025 = 12698618^2 + 5980455^2 .

It is a cyclic number.

It is not a de Polignac number, because 197020741116949 - 2³⁷ = 196883302163477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197020741116649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98510370558474 + 98510370558475.

It is an arithmetic number, because the mean of its divisors is an integer number (98510370558475).

Almost surely, 2^{197020741116949} is an apocalyptic number.

It is an amenable number.

197020741116949 is a deficient number, since it is larger than the sum of its proper divisors (1).

197020741116949 is an equidigital number, since it uses as much as digits as its factorization.

197020741116949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6858432, while the sum is 61.

The spelling of 197020741116949 in words is "one hundred ninety-seven trillion, twenty billion, seven hundred forty-one million, one hundred sixteen thousand, nine hundred forty-nine".