1968075773 has 2 divisors, whose sum is σ = 1968075774. Its totient is φ = 1968075772.

The previous prime is 1968075751. The next prime is 1968075821. The reversal of 1968075773 is 3775708691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1968075769 + 4 = 44363^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 1968075773 - 2²⁰ = 1967027197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1968075743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984037886 + 984037887.

It is an arithmetic number, because the mean of its divisors is an integer number (984037887).

Almost surely, 2^1968075773 is an apocalyptic number.

It is an amenable number.

1968075773 is a deficient number, since it is larger than the sum of its proper divisors (1).

1968075773 is an equidigital number, since it uses as much as digits as its factorization.

1968075773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2222640, while the sum is 53.

The square root of 1968075773 is about 44363.0000450826. Note that the first 4 decimals coincide. The cubic root of 1968075773 is about 1253.1813943547.

The spelling of 1968075773 in words is "one billion, nine hundred sixty-eight million, seventy-five thousand, seven hundred seventy-three".