445738233527173 has 2 divisors, whose sum is σ = 445738233527174. Its totient is φ = 445738233527172.

The previous prime is 445738233527057. The next prime is 445738233527207. The reversal of 445738233527173 is 371725332837544.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412459664664609 + 33278568862564 = 20309103^2 + 5768758^2 .

It is a cyclic number.

It is not a de Polignac number, because 445738233527173 - 2¹⁷ = 445738233396101 is a prime.

It is a super-2 number, since 2×445738233527173² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445738233525173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222869116763586 + 222869116763587.

It is an arithmetic number, because the mean of its divisors is an integer number (222869116763587).

Almost surely, 2^{445738233527173} is an apocalyptic number.

It is an amenable number.

445738233527173 is a deficient number, since it is larger than the sum of its proper divisors (1).

445738233527173 is an equidigital number, since it uses as much as digits as its factorization.

445738233527173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 355622400, while the sum is 64.

The spelling of 445738233527173 in words is "four hundred forty-five trillion, seven hundred thirty-eight billion, two hundred thirty-three million, five hundred twenty-seven thousand, one hundred seventy-three".