43273506136771 has 2 divisors, whose sum is σ = 43273506136772. Its totient is φ = 43273506136770.

The previous prime is 43273506136747. The next prime is 43273506136871. The reversal of 43273506136771 is 17763160537234.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43273506136771 - 2¹⁹ = 43273505612483 is a prime.

It is not a weakly prime, because it can be changed into another prime (43273506136741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21636753068385 + 21636753068386.

It is an arithmetic number, because the mean of its divisors is an integer number (21636753068386).

Almost surely, 2^{43273506136771} is an apocalyptic number.

43273506136771 is a deficient number, since it is larger than the sum of its proper divisors (1).

43273506136771 is an equidigital number, since it uses as much as digits as its factorization.

43273506136771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13335840, while the sum is 55.

The spelling of 43273506136771 in words is "forty-three trillion, two hundred seventy-three billion, five hundred six million, one hundred thirty-six thousand, seven hundred seventy-one".