4408581809663 has 2 divisors, whose sum is σ = 4408581809664. Its totient is φ = 4408581809662.

The previous prime is 4408581809627. The next prime is 4408581809689. The reversal of 4408581809663 is 3669081858044.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4408581809663 - 2⁸ = 4408581809407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4408581809596 and 4408581809605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4408581809623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2204290904831 + 2204290904832.

It is an arithmetic number, because the mean of its divisors is an integer number (2204290904832).

Almost surely, 2^{4408581809663} is an apocalyptic number.

4408581809663 is a deficient number, since it is larger than the sum of its proper divisors (1).

4408581809663 is an equidigital number, since it uses as much as digits as its factorization.

4408581809663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39813120, while the sum is 62.

The spelling of 4408581809663 in words is "four trillion, four hundred eight billion, five hundred eighty-one million, eight hundred nine thousand, six hundred sixty-three".