6463874059664 has 120 divisors (see below), whose sum is σ = 14881140903168. Its totient is φ = 2710794455040.

The previous prime is 6463874059649. The next prime is 6463874059667. The reversal of 6463874059664 is 4669504783646.

It is a junction number, because it is equal to n+sod(n) for n = 6463874059594 and 6463874059603.

It is not an unprimeable number, because it can be changed into a prime (6463874059667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257297024 + ... + 257322144.

Almost surely, 2^{6463874059664} 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 6463874059664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7440570451584).

6463874059664 is an abundant number, since it is smaller than the sum of its proper divisors (8417266843504).

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

6463874059664 is a wasteful number, since it uses less digits than its factorization.

6463874059664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32173 (or 32160 counting only the distinct ones).

The product of its (nonzero) digits is 627056640, while the sum is 68.

The spelling of 6463874059664 in words is "six trillion, four hundred sixty-three billion, eight hundred seventy-four million, fifty-nine thousand, six hundred sixty-four".