43423452427049 has 2 divisors, whose sum is σ = 43423452427050. Its totient is φ = 43423452427048.

The previous prime is 43423452427013. The next prime is 43423452427081. The reversal of 43423452427049 is 94072425432434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42651087408400 + 772365018649 = 6530780^2 + 878843^2 .

It is a cyclic number.

It is not a de Polignac number, because 43423452427049 - 2²⁰ = 43423451378473 is a prime.

It is not a weakly prime, because it can be changed into another prime (43423452487049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21711726213524 + 21711726213525.

It is an arithmetic number, because the mean of its divisors is an integer number (21711726213525).

Almost surely, 2^{43423452427049} is an apocalyptic number.

It is an amenable number.

43423452427049 is a deficient number, since it is larger than the sum of its proper divisors (1).

43423452427049 is an equidigital number, since it uses as much as digits as its factorization.

43423452427049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23224320, while the sum is 53.

The spelling of 43423452427049 in words is "forty-three trillion, four hundred twenty-three billion, four hundred fifty-two million, four hundred twenty-seven thousand, forty-nine".