6463986846 has 16 divisors (see below), whose sum is σ = 13608393600. Its totient is φ = 2041258968.

The previous prime is 6463986829. The next prime is 6463986847. The reversal of 6463986846 is 6486893646.

It is a super-2 number, since 2×6463986846² = 83566251890522055432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6463986846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463986847) 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, 28350706 + ... + 28350933.

It is an arithmetic number, because the mean of its divisors is an integer number (850524600).

Almost surely, 2^6463986846 is an apocalyptic number.

6463986846 is an abundant number, since it is smaller than the sum of its proper divisors (7144406754).

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

6463986846 is a wasteful number, since it uses less digits than its factorization.

6463986846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56701663.

The product of its digits is 35831808, while the sum is 60.

The square root of 6463986846 is about 80398.9231644305. The cubic root of 6463986846 is about 1862.8025395418.

The spelling of 6463986846 in words is "six billion, four hundred sixty-three million, nine hundred eighty-six thousand, eight hundred forty-six".