42443855093 has 2 divisors, whose sum is σ = 42443855094. Its totient is φ = 42443855092.

The previous prime is 42443855063. The next prime is 42443855173. The reversal of 42443855093 is 39055834424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32897978884 + 9545876209 = 181378^2 + 97703^2 .

It is a cyclic number.

It is not a de Polignac number, because 42443855093 - 2²⁰ = 42442806517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42443855063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21221927546 + 21221927547.

It is an arithmetic number, because the mean of its divisors is an integer number (21221927547).

Almost surely, 2^42443855093 is an apocalyptic number.

It is an amenable number.

42443855093 is a deficient number, since it is larger than the sum of its proper divisors (1).

42443855093 is an equidigital number, since it uses as much as digits as its factorization.

42443855093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 42443855093 in words is "forty-two billion, four hundred forty-three million, eight hundred fifty-five thousand, ninety-three".