3849889489 has 2 divisors, whose sum is σ = 3849889490. Its totient is φ = 3849889488.

The previous prime is 3849889481. The next prime is 3849889493. The reversal of 3849889489 is 9849889483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2249889489 + 1600000000 = 47433^2 + 40000^2 .

It is a cyclic number.

It is not a de Polignac number, because 3849889489 - 2³ = 3849889481 is a prime.

It is a super-2 number, since 2×3849889489² = 29643298155025362242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3849889481) 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, 1924944744 + 1924944745.

It is an arithmetic number, because the mean of its divisors is an integer number (1924944745).

Almost surely, 2^3849889489 is an apocalyptic number.

It is an amenable number.

3849889489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3849889489 is an equidigital number, since it uses as much as digits as its factorization.

3849889489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 143327232, while the sum is 70.

The square root of 3849889489 is about 62047.4777005480. The cubic root of 3849889489 is about 1567.2902110395.

The spelling of 3849889489 in words is "three billion, eight hundred forty-nine million, eight hundred eighty-nine thousand, four hundred eighty-nine".