43060912009 has 2 divisors, whose sum is σ = 43060912010. Its totient is φ = 43060912008.

The previous prime is 43060912007. The next prime is 43060912031. The reversal of 43060912009 is 90021906034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43044630784 + 16281225 = 207472^2 + 4035^2 .

It is a cyclic number.

It is not a de Polignac number, because 43060912009 - 2¹ = 43060912007 is a prime.

Together with 43060912007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (43060912001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21530456004 + 21530456005.

It is an arithmetic number, because the mean of its divisors is an integer number (21530456005).

Almost surely, 2^43060912009 is an apocalyptic number.

It is an amenable number.

43060912009 is a deficient number, since it is larger than the sum of its proper divisors (1).

43060912009 is an equidigital number, since it uses as much as digits as its factorization.

43060912009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 43060912009 in words is "forty-three billion, sixty million, nine hundred twelve thousand, nine".