4243666869 has 40 divisors (see below), whose sum is σ = 6852060600. Its totient is φ = 2601880704.

The previous prime is 4243666859. The next prime is 4243666877. The reversal of 4243666869 is 9686663424.

4243666869 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 4 ways, for example, as 171950769 + 4071716100 = 13113^2 + 63810^2 .

It is not a de Polignac number, because 4243666869 - 2¹⁹ = 4243142581 is a prime.

It is a super-2 number, since 2×4243666869² = 36017416990096526322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243666859) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 284407 + ... + 298955.

It is an arithmetic number, because the mean of its divisors is an integer number (171301515).

Almost surely, 2^4243666869 is an apocalyptic number.

It is an amenable number.

4243666869 is a deficient number, since it is larger than the sum of its proper divisors (2608393731).

4243666869 is a wasteful number, since it uses less digits than its factorization.

4243666869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14851 (or 14842 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 54.

The square root of 4243666869 is about 65143.4330458566. The cubic root of 4243666869 is about 1619.0009168960. Note that the first 3 decimals are identical.

The spelling of 4243666869 in words is "four billion, two hundred forty-three million, six hundred sixty-six thousand, eight hundred sixty-nine".