39353842709 has 2 divisors, whose sum is σ = 39353842710. Its totient is φ = 39353842708.

The previous prime is 39353842699. The next prime is 39353842721. The reversal of 39353842709 is 90724835393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35340240100 + 4013602609 = 187990^2 + 63353^2 .

It is a cyclic number.

It is not a de Polignac number, because 39353842709 - 2²⁸ = 39085407253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39353842609) 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, 19676921354 + 19676921355.

It is an arithmetic number, because the mean of its divisors is an integer number (19676921355).

Almost surely, 2^39353842709 is an apocalyptic number.

It is an amenable number.

39353842709 is a deficient number, since it is larger than the sum of its proper divisors (1).

39353842709 is an equidigital number, since it uses as much as digits as its factorization.

39353842709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 39353842709 in words is "thirty-nine billion, three hundred fifty-three million, eight hundred forty-two thousand, seven hundred nine".