6463646896 has 40 divisors (see below), whose sum is σ = 14421648384. Its totient is φ = 2748982080.

The previous prime is 6463646869. The next prime is 6463646899. The reversal of 6463646896 is 6986463646.

It is a self number, because there is not a number n which added to its sum of digits gives 6463646896.

It is not an unprimeable number, because it can be changed into a prime (6463646899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205600 + ... + 234943.

Almost surely, 2^6463646896 is an apocalyptic number.

It is an amenable number.

6463646896 is an abundant number, since it is smaller than the sum of its proper divisors (7958001488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6463646896 is a wasteful number, since it uses less digits than its factorization.

6463646896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440689 (or 440683 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 58.

The square root of 6463646896 is about 80396.8089914021. The cubic root of 6463646896 is about 1862.7698831828.

The spelling of 6463646896 in words is "six billion, four hundred sixty-three million, six hundred forty-six thousand, eight hundred ninety-six".