197530864211 has 2 divisors, whose sum is σ = 197530864212. Its totient is φ = 197530864210.

The previous prime is 197530864171. The next prime is 197530864249. The reversal of 197530864211 is 112468035791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197530864211 - 2¹⁸ = 197530602067 is a prime.

It is not a weakly prime, because it can be changed into another prime (197530860211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98765432105 + 98765432106.

It is an arithmetic number, because the mean of its divisors is an integer number (98765432106).

It is a 2-persistent number, because it is pandigital, and so is 2⋅197530864211 = 395061728422, but 3⋅197530864211 = 592592592633 is not.

Almost surely, 2^197530864211 is an apocalyptic number.

197530864211 is a deficient number, since it is larger than the sum of its proper divisors (1).

197530864211 is an equidigital number, since it uses as much as digits as its factorization.

197530864211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 197530864211 in words is "one hundred ninety-seven billion, five hundred thirty million, eight hundred sixty-four thousand, two hundred eleven".