6463348433646 has 32 divisors (see below), whose sum is σ = 13931549011968. Its totient is φ = 1987223902560.

The previous prime is 6463348433587. The next prime is 6463348433699.

6463348433646 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6463348433646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31118590 + ... + 31325601.

It is an arithmetic number, because the mean of its divisors is an integer number (435360906624).

Almost surely, 2^{6463348433646} is an apocalyptic number.

6463348433646 is an abundant number, since it is smaller than the sum of its proper divisors (7468200578322).

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

6463348433646 is a wasteful number, since it uses less digits than its factorization.

6463348433646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62445536.

The product of its digits is 214990848, while the sum is 60.

The spelling of 6463348433646 in words is "six trillion, four hundred sixty-three billion, three hundred forty-eight million, four hundred thirty-three thousand, six hundred forty-six".