3850818161 has 2 divisors, whose sum is σ = 3850818162. Its totient is φ = 3850818160.

The previous prime is 3850818151. The next prime is 3850818193. The reversal of 3850818161 is 1618180583.

3850818161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2712430561 + 1138387600 = 52081^2 + 33740^2 .

It is a cyclic number.

It is not a de Polignac number, because 3850818161 - 2¹⁴ = 3850801777 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3850818151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1925409080 + 1925409081.

It is an arithmetic number, because the mean of its divisors is an integer number (1925409081).

Almost surely, 2^3850818161 is an apocalyptic number.

It is an amenable number.

3850818161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3850818161 is an equidigital number, since it uses as much as digits as its factorization.

3850818161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 3850818161 is about 62054.9608089474. The cubic root of 3850818161 is about 1567.4162217145.

The spelling of 3850818161 in words is "three billion, eight hundred fifty million, eight hundred eighteen thousand, one hundred sixty-one".