6143799881 has 12 divisors (see below), whose sum is σ = 6660035892. Its totient is φ = 5647896576.

The previous prime is 6143799877. The next prime is 6143799889. The reversal of 6143799881 is 1889973416.

6143799881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1775779600 + 4368020281 = 42140^2 + 66091^2 .

It is not a de Polignac number, because 6143799881 - 2² = 6143799877 is a prime.

It is a super-2 number, since 2×6143799881² = 75492553955551228322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6143799889) 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 in 11 ways as a sum of consecutive naturals, for example, 66296 + ... + 129161.

It is an arithmetic number, because the mean of its divisors is an integer number (555002991).

Almost surely, 2^6143799881 is an apocalyptic number.

It is an amenable number.

6143799881 is a deficient number, since it is larger than the sum of its proper divisors (516236011).

6143799881 is a wasteful number, since it uses less digits than its factorization.

6143799881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195560 (or 195517 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 56.

The square root of 6143799881 is about 78382.3952236725. The cubic root of 6143799881 is about 1831.5229025335.

The spelling of 6143799881 in words is "six billion, one hundred forty-three million, seven hundred ninety-nine thousand, eight hundred eighty-one".