6463787500 has 72 divisors (see below), whose sum is σ = 14187216960. Its totient is φ = 2576640000.

The previous prime is 6463787489. The next prime is 6463787507. The reversal of 6463787500 is 57873646.

It is not an unprimeable number, because it can be changed into a prime (6463787507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4586796 + ... + 4588204.

It is an arithmetic number, because the mean of its divisors is an integer number (197044680).

Almost surely, 2^6463787500 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 6463787500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7093608480).

6463787500 is an abundant number, since it is smaller than the sum of its proper divisors (7723429460).

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

6463787500 is a wasteful number, since it uses less digits than its factorization.

6463787500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805 (or 1783 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 6463787500 is about 80397.6834243375. The cubic root of 6463787500 is about 1862.7833900571.

The spelling of 6463787500 in words is "six billion, four hundred sixty-three million, seven hundred eighty-seven thousand, five hundred".