29818727249 has 2 divisors, whose sum is σ = 29818727250. Its totient is φ = 29818727248.

The previous prime is 29818727207. The next prime is 29818727261. The reversal of 29818727249 is 94272781892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20951115025 + 8867612224 = 144745^2 + 94168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29818727249 is a prime.

It is not a weakly prime, because it can be changed into another prime (29818727749) 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, 14909363624 + 14909363625.

It is an arithmetic number, because the mean of its divisors is an integer number (14909363625).

Almost surely, 2^29818727249 is an apocalyptic number.

It is an amenable number.

29818727249 is a deficient number, since it is larger than the sum of its proper divisors (1).

29818727249 is an equidigital number, since it uses as much as digits as its factorization.

29818727249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 59.

The spelling of 29818727249 in words is "twenty-nine billion, eight hundred eighteen million, seven hundred twenty-seven thousand, two hundred forty-nine".