43243333369 has 2 divisors, whose sum is σ = 43243333370. Its totient is φ = 43243333368.

The previous prime is 43243333363. The next prime is 43243333453. The reversal of 43243333369 is 96333334234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41830475625 + 1412857744 = 204525^2 + 37588^2 .

It is a cyclic number.

It is not a de Polignac number, because 43243333369 - 2⁵ = 43243333337 is a prime.

It is a super-2 number, since 2×43243333369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43243333363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621666684 + 21621666685.

It is an arithmetic number, because the mean of its divisors is an integer number (21621666685).

Almost surely, 2^43243333369 is an apocalyptic number.

It is an amenable number.

43243333369 is a deficient number, since it is larger than the sum of its proper divisors (1).

43243333369 is an equidigital number, since it uses as much as digits as its factorization.

43243333369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 43.

The spelling of 43243333369 in words is "forty-three billion, two hundred forty-three million, three hundred thirty-three thousand, three hundred sixty-nine".