6463998089 has 4 divisors (see below), whose sum is σ = 6526755456. Its totient is φ = 6401240724.

The previous prime is 6463998083. The next prime is 6463998109. The reversal of 6463998089 is 9808993646.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6463998089 - 2¹² = 6463993993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6463998083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31378529 + ... + 31378734.

It is an arithmetic number, because the mean of its divisors is an integer number (1631688864).

Almost surely, 2^6463998089 is an apocalyptic number.

It is an amenable number.

6463998089 is a deficient number, since it is larger than the sum of its proper divisors (62757367).

6463998089 is a wasteful number, since it uses less digits than its factorization.

6463998089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62757366.

The product of its (nonzero) digits is 20155392, while the sum is 62.

The square root of 6463998089 is about 80398.9930844908. The cubic root of 6463998089 is about 1862.8036195500.

The spelling of 6463998089 in words is "six billion, four hundred sixty-three million, nine hundred ninety-eight thousand, eighty-nine".