99245577554209 has 2 divisors, whose sum is σ = 99245577554210. Its totient is φ = 99245577554208.

The previous prime is 99245577554183. The next prime is 99245577554239. The reversal of 99245577554209 is 90245577554299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68302836289809 + 30942741264400 = 8264553^2 + 5562620^2 .

It is a cyclic number.

It is not a de Polignac number, because 99245577554209 - 2⁵ = 99245577554177 is a prime.

It is not a weakly prime, because it can be changed into another prime (99245577554239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49622788777104 + 49622788777105.

It is an arithmetic number, because the mean of its divisors is an integer number (49622788777105).

Almost surely, 2^{99245577554209} is an apocalyptic number.

It is an amenable number.

99245577554209 is a deficient number, since it is larger than the sum of its proper divisors (1).

99245577554209 is an equidigital number, since it uses as much as digits as its factorization.

99245577554209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1428840000, while the sum is 73.

The spelling of 99245577554209 in words is "ninety-nine trillion, two hundred forty-five billion, five hundred seventy-seven million, five hundred fifty-four thousand, two hundred nine".