6463213220 has 24 divisors (see below), whose sum is σ = 13592419008. Its totient is φ = 2581538400.

The previous prime is 6463213217. The next prime is 6463213241. The reversal of 6463213220 is 223123646.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220016 + ... + 247655.

It is an arithmetic number, because the mean of its divisors is an integer number (566350792).

Almost surely, 2^6463213220 is an apocalyptic number.

It is an amenable number.

6463213220 is an abundant number, since it is smaller than the sum of its proper divisors (7129205788).

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

6463213220 is a wasteful number, since it uses less digits than its factorization.

6463213220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468371 (or 468369 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 6463213220 is about 80394.1118490652. Note that the first 3 decimals coincide. The cubic root of 6463213220 is about 1862.7282216321.

Adding to 6463213220 its reverse (223123646), we get a palindrome (6686336866).

The spelling of 6463213220 in words is "six billion, four hundred sixty-three million, two hundred thirteen thousand, two hundred twenty".