196215486289 has 2 divisors, whose sum is σ = 196215486290. Its totient is φ = 196215486288.

The previous prime is 196215486281. The next prime is 196215486317. The reversal of 196215486289 is 982684512691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162860673600 + 33354812689 = 403560^2 + 182633^2 .

It is a cyclic number.

It is not a de Polignac number, because 196215486289 - 2³ = 196215486281 is a prime.

It is not a weakly prime, because it can be changed into another prime (196215486281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98107743144 + 98107743145.

It is an arithmetic number, because the mean of its divisors is an integer number (98107743145).

Almost surely, 2^196215486289 is an apocalyptic number.

It is an amenable number.

196215486289 is a deficient number, since it is larger than the sum of its proper divisors (1).

196215486289 is an equidigital number, since it uses as much as digits as its factorization.

196215486289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14929920, while the sum is 61.

The spelling of 196215486289 in words is "one hundred ninety-six billion, two hundred fifteen million, four hundred eighty-six thousand, two hundred eighty-nine".