197643374063 has 2 divisors, whose sum is σ = 197643374064. Its totient is φ = 197643374062.

The previous prime is 197643374039. The next prime is 197643374111. The reversal of 197643374063 is 360473346791.

It is a weak prime.

It is an emirp because it is prime and its reverse (360473346791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197643374063 - 2³⁰ = 196569632239 is a prime.

It is a super-2 number, since 2×197643374063² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 197643373996 and 197643374014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197643374563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98821687031 + 98821687032.

It is an arithmetic number, because the mean of its divisors is an integer number (98821687032).

Almost surely, 2^197643374063 is an apocalyptic number.

197643374063 is a deficient number, since it is larger than the sum of its proper divisors (1).

197643374063 is an equidigital number, since it uses as much as digits as its factorization.

197643374063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6858432, while the sum is 53.

The spelling of 197643374063 in words is "one hundred ninety-seven billion, six hundred forty-three million, three hundred seventy-four thousand, sixty-three".