4781217663 has 24 divisors (see below), whose sum is σ = 7144698288. Its totient is φ = 3078663552.

The previous prime is 4781217659. The next prime is 4781217673. The reversal of 4781217663 is 3667121874.

4781217663 is a `hidden beast` number, since 478 + 1 + 2 + 176 + 6 + 3 = 666.

It is not a de Polignac number, because 4781217663 - 2² = 4781217659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4781217613) 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 in 23 ways as a sum of consecutive naturals, for example, 6781 + ... + 98022.

It is an arithmetic number, because the mean of its divisors is an integer number (297695762).

Almost surely, 2^4781217663 is an apocalyptic number.

4781217663 is a deficient number, since it is larger than the sum of its proper divisors (2363480625).

4781217663 is a wasteful number, since it uses less digits than its factorization.

4781217663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104983 (or 104980 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 4781217663 is about 69146.3495999608. The cubic root of 4781217663 is about 1684.6622272288.

The spelling of 4781217663 in words is "four billion, seven hundred eighty-one million, two hundred seventeen thousand, six hundred sixty-three".