445775733185789 has 2 divisors, whose sum is σ = 445775733185790. Its totient is φ = 445775733185788.

The previous prime is 445775733185747. The next prime is 445775733185833. The reversal of 445775733185789 is 987581337577544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 393928892960164 + 51846840225625 = 19847642^2 + 7200475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445775733185789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445775733145789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222887866592894 + 222887866592895.

It is an arithmetic number, because the mean of its divisors is an integer number (222887866592895).

Almost surely, 2^{445775733185789} is an apocalyptic number.

It is an amenable number.

445775733185789 is a deficient number, since it is larger than the sum of its proper divisors (1).

445775733185789 is an equidigital number, since it uses as much as digits as its factorization.

445775733185789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24893568000, while the sum is 83.

The spelling of 445775733185789 in words is "four hundred forty-five trillion, seven hundred seventy-five billion, seven hundred thirty-three million, one hundred eighty-five thousand, seven hundred eighty-nine".