229646388949 has 2 divisors, whose sum is σ = 229646388950. Its totient is φ = 229646388948.

The previous prime is 229646388863. The next prime is 229646388953. The reversal of 229646388949 is 949883646922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208328344900 + 21318044049 = 456430^2 + 146007^2 .

It is a cyclic number.

It is not a de Polignac number, because 229646388949 - 2¹⁹ = 229645864661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229646389949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114823194474 + 114823194475.

It is an arithmetic number, because the mean of its divisors is an integer number (114823194475).

Almost surely, 2^229646388949 is an apocalyptic number.

It is an amenable number.

229646388949 is a deficient number, since it is larger than the sum of its proper divisors (1).

229646388949 is an equidigital number, since it uses as much as digits as its factorization.

229646388949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322486272, while the sum is 70.

The spelling of 229646388949 in words is "two hundred twenty-nine billion, six hundred forty-six million, three hundred eighty-eight thousand, nine hundred forty-nine".