3850185033869 has 2 divisors, whose sum is σ = 3850185033870. Its totient is φ = 3850185033868.

The previous prime is 3850185033839. The next prime is 3850185033881. The reversal of 3850185033869 is 9683305810583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3815126965225 + 35058068644 = 1953235^2 + 187238^2 .

It is a cyclic number.

It is not a de Polignac number, because 3850185033869 - 2¹² = 3850185029773 is a prime.

It is a super-2 number, since 2×3850185033869² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3850185033839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1925092516934 + 1925092516935.

It is an arithmetic number, because the mean of its divisors is an integer number (1925092516935).

Almost surely, 2^{3850185033869} is an apocalyptic number.

It is an amenable number.

3850185033869 is a deficient number, since it is larger than the sum of its proper divisors (1).

3850185033869 is an equidigital number, since it uses as much as digits as its factorization.

3850185033869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18662400, while the sum is 59.

The spelling of 3850185033869 in words is "three trillion, eight hundred fifty billion, one hundred eighty-five million, thirty-three thousand, eight hundred sixty-nine".