197805052843 has 2 divisors, whose sum is σ = 197805052844. Its totient is φ = 197805052842.

The previous prime is 197805052829. The next prime is 197805052919. The reversal of 197805052843 is 348250508791.

It is a happy number.

197805052843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 197805052843 - 2⁵ = 197805052811 is a prime.

It is not a weakly prime, because it can be changed into another prime (197805652843) 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 as a sum of consecutive naturals, namely, 98902526421 + 98902526422.

It is an arithmetic number, because the mean of its divisors is an integer number (98902526422).

Almost surely, 2^197805052843 is an apocalyptic number.

197805052843 is a deficient number, since it is larger than the sum of its proper divisors (1).

197805052843 is an equidigital number, since it uses as much as digits as its factorization.

197805052843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 197805052843 in words is "one hundred ninety-seven billion, eight hundred five million, fifty-two thousand, eight hundred forty-three".