197688299863 has 2 divisors, whose sum is σ = 197688299864. Its totient is φ = 197688299862.

The previous prime is 197688299801. The next prime is 197688299911. The reversal of 197688299863 is 368992886791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197688299863 - 2¹⁷ = 197688168791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197688299863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197688294863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98844149931 + 98844149932.

It is an arithmetic number, because the mean of its divisors is an integer number (98844149932).

Almost surely, 2^197688299863 is an apocalyptic number.

197688299863 is a deficient number, since it is larger than the sum of its proper divisors (1).

197688299863 is an equidigital number, since it uses as much as digits as its factorization.

197688299863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564350976, while the sum is 76.

The spelling of 197688299863 in words is "one hundred ninety-seven billion, six hundred eighty-eight million, two hundred ninety-nine thousand, eight hundred sixty-three".