39852430493 has 2 divisors, whose sum is σ = 39852430494. Its totient is φ = 39852430492.

The previous prime is 39852430483. The next prime is 39852430507. The reversal of 39852430493 is 39403425893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37364116804 + 2488313689 = 193298^2 + 49883^2 .

It is a cyclic number.

It is not a de Polignac number, because 39852430493 - 2⁴ = 39852430477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39852430483) 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, 19926215246 + 19926215247.

It is an arithmetic number, because the mean of its divisors is an integer number (19926215247).

Almost surely, 2^39852430493 is an apocalyptic number.

It is an amenable number.

39852430493 is a deficient number, since it is larger than the sum of its proper divisors (1).

39852430493 is an equidigital number, since it uses as much as digits as its factorization.

39852430493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 39852430493 in words is "thirty-nine billion, eight hundred fifty-two million, four hundred thirty thousand, four hundred ninety-three".