4115209949 has 2 divisors, whose sum is σ = 4115209950. Its totient is φ = 4115209948.

The previous prime is 4115209937. The next prime is 4115210003. The reversal of 4115209949 is 9499025114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3862622500 + 252587449 = 62150^2 + 15893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4115209949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4115209909) 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, 2057604974 + 2057604975.

It is an arithmetic number, because the mean of its divisors is an integer number (2057604975).

Almost surely, 2^4115209949 is an apocalyptic number.

It is an amenable number.

4115209949 is a deficient number, since it is larger than the sum of its proper divisors (1).

4115209949 is an equidigital number, since it uses as much as digits as its factorization.

4115209949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 4115209949 is about 64149.9021745162. The cubic root of 4115209949 is about 1602.4973953000.

The spelling of 4115209949 in words is "four billion, one hundred fifteen million, two hundred nine thousand, nine hundred forty-nine".