445678727209039 has 2 divisors, whose sum is σ = 445678727209040. Its totient is φ = 445678727209038.

The previous prime is 445678727209033. The next prime is 445678727209123. The reversal of 445678727209039 is 930902727876544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445678727209039 - 2³³ = 445670137274447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445678727209033) 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, 222839363604519 + 222839363604520.

It is an arithmetic number, because the mean of its divisors is an integer number (222839363604520).

Almost surely, 2^{445678727209039} is an apocalyptic number.

445678727209039 is a deficient number, since it is larger than the sum of its proper divisors (1).

445678727209039 is an equidigital number, since it uses as much as digits as its factorization.

445678727209039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280240640, while the sum is 73.

The spelling of 445678727209039 in words is "four hundred forty-five trillion, six hundred seventy-eight billion, seven hundred twenty-seven million, two hundred nine thousand, thirty-nine".