4243352665 has 4 divisors (see below), whose sum is σ = 5092023204. Its totient is φ = 3394682128.

The previous prime is 4243352651. The next prime is 4243352671. The reversal of 4243352665 is 5662533424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2267283456 + 1976069209 = 47616^2 + 44453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4243352665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424335262 + ... + 424335271.

It is an arithmetic number, because the mean of its divisors is an integer number (1273005801).

Almost surely, 2^4243352665 is an apocalyptic number.

It is an amenable number.

4243352665 is a deficient number, since it is larger than the sum of its proper divisors (848670539).

4243352665 is an equidigital number, since it uses as much as digits as its factorization.

4243352665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848670538.

The product of its digits is 518400, while the sum is 40.

The square root of 4243352665 is about 65141.0213690268. The cubic root of 4243352665 is about 1618.9609585977.

The spelling of 4243352665 in words is "four billion, two hundred forty-three million, three hundred fifty-two thousand, six hundred sixty-five".