39019075493 has 2 divisors, whose sum is σ = 39019075494. Its totient is φ = 39019075492.

The previous prime is 39019075477. The next prime is 39019075577. The reversal of 39019075493 is 39457091093.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35584295044 + 3434780449 = 188638^2 + 58607^2 .

It is a cyclic number.

It is not a de Polignac number, because 39019075493 - 2⁴ = 39019075477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39019075793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19509537746 + 19509537747.

It is an arithmetic number, because the mean of its divisors is an integer number (19509537747).

Almost surely, 2^39019075493 is an apocalyptic number.

It is an amenable number.

39019075493 is a deficient number, since it is larger than the sum of its proper divisors (1).

39019075493 is an equidigital number, since it uses as much as digits as its factorization.

39019075493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 918540, while the sum is 50.

The spelling of 39019075493 in words is "thirty-nine billion, nineteen million, seventy-five thousand, four hundred ninety-three".