229191606439 has 2 divisors, whose sum is σ = 229191606440. Its totient is φ = 229191606438.

The previous prime is 229191606271. The next prime is 229191606463. The reversal of 229191606439 is 934606191922.

229191606439 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 is a cyclic number.

It is not a de Polignac number, because 229191606439 - 2¹³ = 229191598247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229191601439) 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, 114595803219 + 114595803220.

It is an arithmetic number, because the mean of its divisors is an integer number (114595803220).

Almost surely, 2^229191606439 is an apocalyptic number.

229191606439 is a deficient number, since it is larger than the sum of its proper divisors (1).

229191606439 is an equidigital number, since it uses as much as digits as its factorization.

229191606439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The spelling of 229191606439 in words is "two hundred twenty-nine billion, one hundred ninety-one million, six hundred six thousand, four hundred thirty-nine".