3888943238489 has 2 divisors, whose sum is σ = 3888943238490. Its totient is φ = 3888943238488.

The previous prime is 3888943238483. The next prime is 3888943238549. The reversal of 3888943238489 is 9848323498883.

3888943238489 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., 2829931417600 + 1059011820889 = 1682240^2 + 1029083^2 .

It is a cyclic number.

It is not a de Polignac number, because 3888943238489 - 2⁸ = 3888943238233 is a prime.

It is a super-2 number, since 2×3888943238489² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3888943238483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1944471619244 + 1944471619245.

It is an arithmetic number, because the mean of its divisors is an integer number (1944471619245).

Almost surely, 2^{3888943238489} is an apocalyptic number.

It is an amenable number.

3888943238489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3888943238489 is an equidigital number, since it uses as much as digits as its factorization.

3888943238489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2293235712, while the sum is 77.

The spelling of 3888943238489 in words is "three trillion, eight hundred eighty-eight billion, nine hundred forty-three million, two hundred thirty-eight thousand, four hundred eighty-nine".