4243965669 has 12 divisors (see below), whose sum is σ = 6133692396. Its totient is φ = 2827685952.

The previous prime is 4243965667. The next prime is 4243965673. The reversal of 4243965669 is 9665693424.

4243965669 is a `hidden beast` number, since 42 + 4 + 39 + 6 + 566 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 927933444 + 3316032225 = 30462^2 + 57585^2 .

It is not a de Polignac number, because 4243965669 - 2¹ = 4243965667 is a prime.

It is a super-2 number, since 2×4243965669² = 36022489199301235122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243965667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118722 + ... + 150275.

It is an arithmetic number, because the mean of its divisors is an integer number (511141033).

Almost surely, 2^4243965669 is an apocalyptic number.

It is an amenable number.

4243965669 is a deficient number, since it is larger than the sum of its proper divisors (1889726727).

4243965669 is a wasteful number, since it uses less digits than its factorization.

4243965669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270756 (or 270753 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The square root of 4243965669 is about 65145.7264062655. The cubic root of 4243965669 is about 1619.0389143901.

The spelling of 4243965669 in words is "four billion, two hundred forty-three million, nine hundred sixty-five thousand, six hundred sixty-nine".