43601349073 has 2 divisors, whose sum is σ = 43601349074. Its totient is φ = 43601349072.

The previous prime is 43601349049. The next prime is 43601349079. The reversal of 43601349073 is 37094310634.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41415506064 + 2185843009 = 203508^2 + 46753^2 .

It is a cyclic number.

It is not a de Polignac number, because 43601349073 - 2⁵ = 43601349041 is a prime.

It is not a weakly prime, because it can be changed into another prime (43601349079) 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 as a sum of consecutive naturals, namely, 21800674536 + 21800674537.

It is an arithmetic number, because the mean of its divisors is an integer number (21800674537).

Almost surely, 2^43601349073 is an apocalyptic number.

It is an amenable number.

43601349073 is a deficient number, since it is larger than the sum of its proper divisors (1).

43601349073 is an equidigital number, since it uses as much as digits as its factorization.

43601349073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 40.

The spelling of 43601349073 in words is "forty-three billion, six hundred one million, three hundred forty-nine thousand, seventy-three".