229903887949 has 2 divisors, whose sum is σ = 229903887950. Its totient is φ = 229903887948.

The previous prime is 229903887947. The next prime is 229903888001. The reversal of 229903887949 is 949788309922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195026457924 + 34877430025 = 441618^2 + 186755^2 .

It is a cyclic number.

It is not a de Polignac number, because 229903887949 - 2¹ = 229903887947 is a prime.

Together with 229903887947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229903887947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114951943974 + 114951943975.

It is an arithmetic number, because the mean of its divisors is an integer number (114951943975).

Almost surely, 2^229903887949 is an apocalyptic number.

It is an amenable number.

229903887949 is a deficient number, since it is larger than the sum of its proper divisors (1).

229903887949 is an equidigital number, since it uses as much as digits as its factorization.

229903887949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141087744, while the sum is 70.

The spelling of 229903887949 in words is "two hundred twenty-nine billion, nine hundred three million, eight hundred eighty-seven thousand, nine hundred forty-nine".