39043234073 has 2 divisors, whose sum is σ = 39043234074. Its totient is φ = 39043234072.

The previous prime is 39043234067. The next prime is 39043234099. The reversal of 39043234073 is 37043234093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31105671424 + 7937562649 = 176368^2 + 89093^2 .

It is a cyclic number.

It is not a de Polignac number, because 39043234073 - 2⁴ = 39043234057 is a prime.

It is not a weakly prime, because it can be changed into another prime (39043234063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19521617036 + 19521617037.

It is an arithmetic number, because the mean of its divisors is an integer number (19521617037).

Almost surely, 2^39043234073 is an apocalyptic number.

It is an amenable number.

39043234073 is a deficient number, since it is larger than the sum of its proper divisors (1).

39043234073 is an equidigital number, since it uses as much as digits as its factorization.

39043234073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 38.

The spelling of 39043234073 in words is "thirty-nine billion, forty-three million, two hundred thirty-four thousand, seventy-three".