9485357806549 has 2 divisors, whose sum is σ = 9485357806550. Its totient is φ = 9485357806548.

The previous prime is 9485357806481. The next prime is 9485357806559. The reversal of 9485357806549 is 9456087535849.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7240700631025 + 2244657175524 = 2690855^2 + 1498218^2 .

It is a cyclic number.

It is not a de Polignac number, because 9485357806549 - 2⁹ = 9485357806037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9485357806559) 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, 4742678903274 + 4742678903275.

It is an arithmetic number, because the mean of its divisors is an integer number (4742678903275).

Almost surely, 2^{9485357806549} is an apocalyptic number.

It is an amenable number.

9485357806549 is a deficient number, since it is larger than the sum of its proper divisors (1).

9485357806549 is an equidigital number, since it uses as much as digits as its factorization.

9485357806549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368000, while the sum is 73.

The spelling of 9485357806549 in words is "nine trillion, four hundred eighty-five billion, three hundred fifty-seven million, eight hundred six thousand, five hundred forty-nine".