6463488843646 has 32 divisors (see below), whose sum is σ = 9912092456448. Its totient is φ = 3160270586400.

The previous prime is 6463488843641. The next prime is 6463488843667.

6463488843646 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463488843641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59079031 + ... + 59188333.

It is an arithmetic number, because the mean of its divisors is an integer number (309752889264).

Almost surely, 2^{6463488843646} is an apocalyptic number.

6463488843646 is a deficient number, since it is larger than the sum of its proper divisors (3448603612802).

6463488843646 is a wasteful number, since it uses less digits than its factorization.

6463488843646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113016.

The product of its digits is 1528823808, while the sum is 70.

The spelling of 6463488843646 in words is "six trillion, four hundred sixty-three billion, four hundred eighty-eight million, eight hundred forty-three thousand, six hundred forty-six".