3850666848449 has 2 divisors, whose sum is σ = 3850666848450. Its totient is φ = 3850666848448.

The previous prime is 3850666848341. The next prime is 3850666848467. The reversal of 3850666848449 is 9448486660583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3785386598449 + 65280250000 = 1945607^2 + 255500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3850666848449 is a prime.

It is not a weakly prime, because it can be changed into another prime (3850666845449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1925333424224 + 1925333424225.

It is an arithmetic number, because the mean of its divisors is an integer number (1925333424225).

Almost surely, 2^{3850666848449} is an apocalyptic number.

It is an amenable number.

3850666848449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3850666848449 is an equidigital number, since it uses as much as digits as its factorization.

3850666848449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 955514880, while the sum is 71.

The spelling of 3850666848449 in words is "three trillion, eight hundred fifty billion, six hundred sixty-six million, eight hundred forty-eight thousand, four hundred forty-nine".