393539339741089 has 2 divisors, whose sum is σ = 393539339741090. Its totient is φ = 393539339741088.

The previous prime is 393539339741033. The next prime is 393539339741137. The reversal of 393539339741089 is 980147933935393.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330526035140625 + 63013304600464 = 18180375^2 + 7938092^2 .

It is a cyclic number.

It is not a de Polignac number, because 393539339741089 - 2¹¹ = 393539339739041 is a prime.

It is not a weakly prime, because it can be changed into another prime (393539339741489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196769669870544 + 196769669870545.

It is an arithmetic number, because the mean of its divisors is an integer number (196769669870545).

Almost surely, 2^{393539339741089} is an apocalyptic number.

It is an amenable number.

393539339741089 is a deficient number, since it is larger than the sum of its proper divisors (1).

393539339741089 is an equidigital number, since it uses as much as digits as its factorization.

393539339741089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1785641760, while the sum is 76.

The spelling of 393539339741089 in words is "three hundred ninety-three trillion, five hundred thirty-nine billion, three hundred thirty-nine million, seven hundred forty-one thousand, eighty-nine".