104343773777809 has 2 divisors, whose sum is σ = 104343773777810. Its totient is φ = 104343773777808.

The previous prime is 104343773777791. The next prime is 104343773777857. The reversal of 104343773777809 is 908777377343401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92019356099584 + 12324417678225 = 9592672^2 + 3510615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104343773777809 is a prime.

It is not a weakly prime, because it can be changed into another prime (104343773777879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52171886888904 + 52171886888905.

It is an arithmetic number, because the mean of its divisors is an integer number (52171886888905).

Almost surely, 2^{104343773777809} is an apocalyptic number.

It is an amenable number.

104343773777809 is a deficient number, since it is larger than the sum of its proper divisors (1).

104343773777809 is an equidigital number, since it uses as much as digits as its factorization.

104343773777809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 522764928, while the sum is 70.

The spelling of 104343773777809 in words is "one hundred four trillion, three hundred forty-three billion, seven hundred seventy-three million, seven hundred seventy-seven thousand, eight hundred nine".