43267120936409 has 2 divisors, whose sum is σ = 43267120936410. Its totient is φ = 43267120936408.

The previous prime is 43267120936387. The next prime is 43267120936411. The reversal of 43267120936409 is 90463902176234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39834123399184 + 3432997537225 = 6311428^2 + 1852835^2 .

It is a cyclic number.

It is not a de Polignac number, because 43267120936409 - 2¹² = 43267120932313 is a prime.

Together with 43267120936411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43267120936499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21633560468204 + 21633560468205.

It is an arithmetic number, because the mean of its divisors is an integer number (21633560468205).

Almost surely, 2^{43267120936409} is an apocalyptic number.

It is an amenable number.

43267120936409 is a deficient number, since it is larger than the sum of its proper divisors (1).

43267120936409 is an equidigital number, since it uses as much as digits as its factorization.

43267120936409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11757312, while the sum is 56.

The spelling of 43267120936409 in words is "forty-three trillion, two hundred sixty-seven billion, one hundred twenty million, nine hundred thirty-six thousand, four hundred nine".