93645548209 has 2 divisors, whose sum is σ = 93645548210. Its totient is φ = 93645548208.

The previous prime is 93645548093. The next prime is 93645548251. The reversal of 93645548209 is 90284554639.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93362635809 + 282912400 = 305553^2 + 16820^2 .

It is a cyclic number.

It is not a de Polignac number, because 93645548209 - 2¹¹ = 93645546161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 93645548209.

It is not a weakly prime, because it can be changed into another prime (93645548809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46822774104 + 46822774105.

It is an arithmetic number, because the mean of its divisors is an integer number (46822774105).

Almost surely, 2^93645548209 is an apocalyptic number.

It is an amenable number.

93645548209 is a deficient number, since it is larger than the sum of its proper divisors (1).

93645548209 is an equidigital number, since it uses as much as digits as its factorization.

93645548209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 93645548209 in words is "ninety-three billion, six hundred forty-five million, five hundred forty-eight thousand, two hundred nine".