8081668463 has 8 divisors (see below), whose sum is σ = 8819544576. Its totient is φ = 7344322200.

The previous prime is 8081668381. The next prime is 8081668477. The reversal of 8081668463 is 3648661808.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8081668463 - 2⁸ = 8081668207 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 (8081664463) 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, 100223 + ... + 161888.

It is an arithmetic number, because the mean of its divisors is an integer number (1102443072).

Almost surely, 2^8081668463 is an apocalyptic number.

8081668463 is a deficient number, since it is larger than the sum of its proper divisors (737876113).

8081668463 is a wasteful number, since it uses less digits than its factorization.

8081668463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264925.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The square root of 8081668463 is about 89898.1004415555. The cubic root of 8081668463 is about 2006.7826768942.

The spelling of 8081668463 in words is "eight billion, eighty-one million, six hundred sixty-eight thousand, four hundred sixty-three".