190681648819229 has 2 divisors, whose sum is σ = 190681648819230. Its totient is φ = 190681648819228.

The previous prime is 190681648819199. The next prime is 190681648819339. The reversal of 190681648819229 is 922918846186091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165828203404900 + 24853445414329 = 12877430^2 + 4985323^2 .

It is a cyclic number.

It is not a de Polignac number, because 190681648819229 - 2²⁸ = 190681380383773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190681648809229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95340824409614 + 95340824409615.

It is an arithmetic number, because the mean of its divisors is an integer number (95340824409615).

Almost surely, 2^{190681648819229} is an apocalyptic number.

It is an amenable number.

190681648819229 is a deficient number, since it is larger than the sum of its proper divisors (1).

190681648819229 is an equidigital number, since it uses as much as digits as its factorization.

190681648819229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214990848, while the sum is 74.

The spelling of 190681648819229 in words is "one hundred ninety trillion, six hundred eighty-one billion, six hundred forty-eight million, eight hundred nineteen thousand, two hundred twenty-nine".