1765823166673 has 2 divisors, whose sum is σ = 1765823166674. Its totient is φ = 1765823166672.

The previous prime is 1765823166629. The next prime is 1765823166781. The reversal of 1765823166673 is 3766613285671.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1765090273489 + 732893184 = 1328567^2 + 27072^2 .

It is a cyclic number.

It is not a de Polignac number, because 1765823166673 - 2²⁵ = 1765789612241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1765823169673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 882911583336 + 882911583337.

It is an arithmetic number, because the mean of its divisors is an integer number (882911583337).

Almost surely, 2^{1765823166673} is an apocalyptic number.

It is an amenable number.

1765823166673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1765823166673 is an equidigital number, since it uses as much as digits as its factorization.

1765823166673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45722880, while the sum is 61.

The spelling of 1765823166673 in words is "one trillion, seven hundred sixty-five billion, eight hundred twenty-three million, one hundred sixty-six thousand, six hundred seventy-three".