197064655589 has 2 divisors, whose sum is σ = 197064655590. Its totient is φ = 197064655588.

The previous prime is 197064655511. The next prime is 197064655603. The reversal of 197064655589 is 985556460791.

197064655589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160825060900 + 36239594689 = 401030^2 + 190367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197064655589 is a prime.

It is a super-3 number, since 3×197064655589³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197064255589) 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, 98532327794 + 98532327795.

It is an arithmetic number, because the mean of its divisors is an integer number (98532327795).

Almost surely, 2^197064655589 is an apocalyptic number.

It is an amenable number.

197064655589 is a deficient number, since it is larger than the sum of its proper divisors (1).

197064655589 is an equidigital number, since it uses as much as digits as its factorization.

197064655589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648000, while the sum is 65.

The spelling of 197064655589 in words is "one hundred ninety-seven billion, sixty-four million, six hundred fifty-five thousand, five hundred eighty-nine".