4478730663 has 12 divisors (see below), whose sum is σ = 6563870264. Its totient is φ = 2714382000.

The previous prime is 4478730643. The next prime is 4478730667. The reversal of 4478730663 is 3660378744.

It is a de Polignac number, because none of the positive numbers 2^k-4478730663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478730667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6168688 + ... + 6169413.

Almost surely, 2^4478730663 is an apocalyptic number.

4478730663 is a deficient number, since it is larger than the sum of its proper divisors (2085139601).

4478730663 is a wasteful number, since it uses less digits than its factorization.

4478730663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12338126 (or 12338115 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 48.

The square root of 4478730663 is about 66923.3192766169. The cubic root of 4478730663 is about 1648.3584117667.

The spelling of 4478730663 in words is "four billion, four hundred seventy-eight million, seven hundred thirty thousand, six hundred sixty-three".