43673434073409 has 16 divisors (see below), whose sum is σ = 66677241439232. Its totient is φ = 24908530544208.

The previous prime is 43673434073363. The next prime is 43673434073419. The reversal of 43673434073409 is 90437043437634.

It is not a de Polignac number, because 43673434073409 - 2⁷ = 43673434073281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43673434073419) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1988217829 + ... + 1988239794.

It is an arithmetic number, because the mean of its divisors is an integer number (4167327589952).

Almost surely, 2^{43673434073409} is an apocalyptic number.

It is an amenable number.

43673434073409 is a deficient number, since it is larger than the sum of its proper divisors (23003807365823).

43673434073409 is a wasteful number, since it uses less digits than its factorization.

43673434073409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976458156.

The product of its (nonzero) digits is 54867456, while the sum is 57.

The spelling of 43673434073409 in words is "forty-three trillion, six hundred seventy-three billion, four hundred thirty-four million, seventy-three thousand, four hundred nine".