197671096853 has 2 divisors, whose sum is σ = 197671096854. Its totient is φ = 197671096852.

The previous prime is 197671096801. The next prime is 197671096859. The reversal of 197671096853 is 358690176791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110079959089 + 87591137764 = 331783^2 + 295958^2 .

It is a cyclic number.

It is not a de Polignac number, because 197671096853 - 2⁶ = 197671096789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197671096859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98835548426 + 98835548427.

It is an arithmetic number, because the mean of its divisors is an integer number (98835548427).

Almost surely, 2^197671096853 is an apocalyptic number.

It is an amenable number.

197671096853 is a deficient number, since it is larger than the sum of its proper divisors (1).

197671096853 is an equidigital number, since it uses as much as digits as its factorization.

197671096853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17146080, while the sum is 62.

The spelling of 197671096853 in words is "one hundred ninety-seven billion, six hundred seventy-one million, ninety-six thousand, eight hundred fifty-three".