73850920706809 has 2 divisors, whose sum is σ = 73850920706810. Its totient is φ = 73850920706808.

The previous prime is 73850920706753. The next prime is 73850920706837. The reversal of 73850920706809 is 90860702905837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72278103732409 + 1572816974400 = 8501653^2 + 1254120^2 .

It is a cyclic number.

It is not a de Polignac number, because 73850920706809 - 2¹¹ = 73850920704761 is a prime.

It is not a weakly prime, because it can be changed into another prime (73850920701809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36925460353404 + 36925460353405.

It is an arithmetic number, because the mean of its divisors is an integer number (36925460353405).

Almost surely, 2^{73850920706809} is an apocalyptic number.

It is an amenable number.

73850920706809 is a deficient number, since it is larger than the sum of its proper divisors (1).

73850920706809 is an equidigital number, since it uses as much as digits as its factorization.

73850920706809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45722880, while the sum is 64.

The spelling of 73850920706809 in words is "seventy-three trillion, eight hundred fifty billion, nine hundred twenty million, seven hundred six thousand, eight hundred nine".