445744613685823 has 2 divisors, whose sum is σ = 445744613685824. Its totient is φ = 445744613685822.

The previous prime is 445744613685817. The next prime is 445744613685857. The reversal of 445744613685823 is 328586316447544.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445744613685823 - 2⁹ = 445744613685311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445744613685863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222872306842911 + 222872306842912.

It is an arithmetic number, because the mean of its divisors is an integer number (222872306842912).

Almost surely, 2^{445744613685823} is an apocalyptic number.

445744613685823 is a deficient number, since it is larger than the sum of its proper divisors (1).

445744613685823 is an equidigital number, since it uses as much as digits as its factorization.

445744613685823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1857945600, while the sum is 70.

The spelling of 445744613685823 in words is "four hundred forty-five trillion, seven hundred forty-four billion, six hundred thirteen million, six hundred eighty-five thousand, eight hundred twenty-three".