6463862720 has 224 divisors, whose sum is σ = 18065617920. Its totient is φ = 2157281280.

The previous prime is 6463862701. The next prime is 6463862761. The reversal of 6463862720 is 272683646.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15426671 + ... + 15427089.

It is an arithmetic number, because the mean of its divisors is an integer number (80650080).

Almost surely, 2^6463862720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6463862720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9032808960).

6463862720 is an abundant number, since it is smaller than the sum of its proper divisors (11601755200).

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

6463862720 is a wasteful number, since it uses less digits than its factorization.

6463862720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 6463862720 is about 80398.1512225250. The cubic root of 6463862720 is about 1862.7906158527.

The spelling of 6463862720 in words is "six billion, four hundred sixty-three million, eight hundred sixty-two thousand, seven hundred twenty".