800444072773 has 2 divisors, whose sum is σ = 800444072774. Its totient is φ = 800444072772.

The previous prime is 800444072741. The next prime is 800444072777. The reversal of 800444072773 is 377270444008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 695661087969 + 104782984804 = 834063^2 + 323702^2 .

It is a cyclic number.

It is not a de Polignac number, because 800444072773 - 2⁵ = 800444072741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800444072777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400222036386 + 400222036387.

It is an arithmetic number, because the mean of its divisors is an integer number (400222036387).

Almost surely, 2^800444072773 is an apocalyptic number.

It is an amenable number.

800444072773 is a deficient number, since it is larger than the sum of its proper divisors (1).

800444072773 is an equidigital number, since it uses as much as digits as its factorization.

800444072773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1053696, while the sum is 46.

The spelling of 800444072773 in words is "eight hundred billion, four hundred forty-four million, seventy-two thousand, seven hundred seventy-three".