8763720663 has 8 divisors (see below), whose sum is σ = 11792162800. Its totient is φ = 5788879488.

The previous prime is 8763720653. The next prime is 8763720731. The reversal of 8763720663 is 3660273678.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8763720663 - 2¹⁶ = 8763655127 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 (8763720653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13399858 + ... + 13400511.

It is an arithmetic number, because the mean of its divisors is an integer number (1474020350).

Almost surely, 2^8763720663 is an apocalyptic number.

8763720663 is a deficient number, since it is larger than the sum of its proper divisors (3028442137).

8763720663 is a wasteful number, since it uses less digits than its factorization.

8763720663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26800481.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The square root of 8763720663 is about 93614.7459698524. The cubic root of 8763720663 is about 2061.7191686835.

The spelling of 8763720663 in words is "eight billion, seven hundred sixty-three million, seven hundred twenty thousand, six hundred sixty-three".