209094441613 has 2 divisors, whose sum is σ = 209094441614. Its totient is φ = 209094441612.

The previous prime is 209094441559. The next prime is 209094441667. The reversal of 209094441613 is 316144490902.

It is a balanced prime because it is at equal distance from previous prime (209094441559) and next prime (209094441667).

It can be written as a sum of positive squares in only one way, i.e., 125144015049 + 83950426564 = 353757^2 + 289742^2 .

It is a cyclic number.

It is not a de Polignac number, because 209094441613 - 2¹³ = 209094433421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 209094441613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (209094441683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104547220806 + 104547220807.

It is an arithmetic number, because the mean of its divisors is an integer number (104547220807).

Almost surely, 2^209094441613 is an apocalyptic number.

It is an amenable number.

209094441613 is a deficient number, since it is larger than the sum of its proper divisors (1).

209094441613 is an equidigital number, since it uses as much as digits as its factorization.

209094441613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 209094441613 in words is "two hundred nine billion, ninety-four million, four hundred forty-one thousand, six hundred thirteen".