3853390235869 has 2 divisors, whose sum is σ = 3853390235870. Its totient is φ = 3853390235868.

The previous prime is 3853390235857. The next prime is 3853390236023. The reversal of 3853390235869 is 9685320933583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3253741338969 + 599648896900 = 1803813^2 + 774370^2 .

It is a cyclic number.

It is not a de Polignac number, because 3853390235869 - 2⁵ = 3853390235837 is a prime.

It is a super-2 number, since 2×3853390235869² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3853390235869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3853390235839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1926695117934 + 1926695117935.

It is an arithmetic number, because the mean of its divisors is an integer number (1926695117935).

Almost surely, 2^{3853390235869} is an apocalyptic number.

It is an amenable number.

3853390235869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3853390235869 is an equidigital number, since it uses as much as digits as its factorization.

3853390235869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125971200, while the sum is 64.

The spelling of 3853390235869 in words is "three trillion, eight hundred fifty-three billion, three hundred ninety million, two hundred thirty-five thousand, eight hundred sixty-nine".