445766105423389 has 2 divisors, whose sum is σ = 445766105423390. Its totient is φ = 445766105423388.

The previous prime is 445766105423383. The next prime is 445766105423413. The reversal of 445766105423389 is 983324501667544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378868706702500 + 66897398720889 = 19464550^2 + 8179083^2 .

It is a cyclic number.

It is not a de Polignac number, because 445766105423389 - 2⁹ = 445766105422877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445766105423383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222883052711694 + 222883052711695.

It is an arithmetic number, because the mean of its divisors is an integer number (222883052711695).

It is a 2-persistent number, because it is pandigital, and so is 2⋅445766105423389 = 891532210846778, but 3⋅445766105423389 = 1337298316270167 is not.

Almost surely, 2^{445766105423389} is an apocalyptic number.

It is an amenable number.

445766105423389 is a deficient number, since it is larger than the sum of its proper divisors (1).

445766105423389 is an equidigital number, since it uses as much as digits as its factorization.

445766105423389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 522547200, while the sum is 67.

The spelling of 445766105423389 in words is "four hundred forty-five trillion, seven hundred sixty-six billion, one hundred five million, four hundred twenty-three thousand, three hundred eighty-nine".