6463240640304 has 160 divisors (see below), whose sum is σ = 20088714240000. Its totient is φ = 1749234984192.

The previous prime is 6463240640299. The next prime is 6463240640309. The reversal of 6463240640304 is 4030460423646.

It is an interprime number because it is at equal distance from previous prime (6463240640299) and next prime (6463240640309).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (6463240640309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56243097 + ... + 56357895.

It is an arithmetic number, because the mean of its divisors is an integer number (125554464000).

Almost surely, 2^{6463240640304} 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 6463240640304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10044357120000).

6463240640304 is an abundant number, since it is smaller than the sum of its proper divisors (13625473599696).

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

6463240640304 is a wasteful number, since it uses less digits than its factorization.

6463240640304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123655 (or 123649 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 42.

The spelling of 6463240640304 in words is "six trillion, four hundred sixty-three billion, two hundred forty million, six hundred forty thousand, three hundred four".