6143729869 has 2 divisors, whose sum is σ = 6143729870. Its totient is φ = 6143729868.

The previous prime is 6143729783. The next prime is 6143729881. The reversal of 6143729869 is 9689273416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4735228969 + 1408500900 = 68813^2 + 37530^2 .

It is a cyclic number.

It is not a de Polignac number, because 6143729869 - 2¹³ = 6143721677 is a prime.

It is a super-2 number, since 2×6143729869² = 75490833406485514322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6143729899) 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, 3071864934 + 3071864935.

It is an arithmetic number, because the mean of its divisors is an integer number (3071864935).

Almost surely, 2^6143729869 is an apocalyptic number.

It is an amenable number.

6143729869 is a deficient number, since it is larger than the sum of its proper divisors (1).

6143729869 is an equidigital number, since it uses as much as digits as its factorization.

6143729869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 55.

The square root of 6143729869 is about 78381.9486170126. The cubic root of 6143729869 is about 1831.5159454347.

The spelling of 6143729869 in words is "six billion, one hundred forty-three million, seven hundred twenty-nine thousand, eight hundred sixty-nine".