43051204409 has 2 divisors, whose sum is σ = 43051204410. Its totient is φ = 43051204408.

The previous prime is 43051204403. The next prime is 43051204451. The reversal of 43051204409 is 90440215034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42882126400 + 169078009 = 207080^2 + 13003^2 .

It is a cyclic number.

It is not a de Polignac number, because 43051204409 - 2²⁸ = 42782768953 is a prime.

It is not a weakly prime, because it can be changed into another prime (43051204403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21525602204 + 21525602205.

It is an arithmetic number, because the mean of its divisors is an integer number (21525602205).

Almost surely, 2^43051204409 is an apocalyptic number.

It is an amenable number.

43051204409 is a deficient number, since it is larger than the sum of its proper divisors (1).

43051204409 is an equidigital number, since it uses as much as digits as its factorization.

43051204409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 43051204409 in words is "forty-three billion, fifty-one million, two hundred four thousand, four hundred nine".