7478783335663 has 2 divisors, whose sum is σ = 7478783335664. Its totient is φ = 7478783335662.

The previous prime is 7478783335649. The next prime is 7478783335703. The reversal of 7478783335663 is 3665333878747.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7478783335663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7478783335592 and 7478783335601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7478783335603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3739391667831 + 3739391667832.

It is an arithmetic number, because the mean of its divisors is an integer number (3739391667832).

Almost surely, 2^{7478783335663} is an apocalyptic number.

7478783335663 is a deficient number, since it is larger than the sum of its proper divisors (1).

7478783335663 is an equidigital number, since it uses as much as digits as its factorization.

7478783335663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280240640, while the sum is 70.

The spelling of 7478783335663 in words is "seven trillion, four hundred seventy-eight billion, seven hundred eighty-three million, three hundred thirty-five thousand, six hundred sixty-three".