6464244400000 has 96 divisors (see below), whose sum is σ = 16096454370360. Its totient is φ = 2585697600000.

The previous prime is 6464244399989. The next prime is 6464244400109. The reversal of 6464244400000 is 44424646.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7680306 + ... + 8480305.

Almost surely, 2^{6464244400000} is an apocalyptic number.

It is an amenable number.

6464244400000 is an abundant number, since it is smaller than the sum of its proper divisors (9632209970360).

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

6464244400000 is an frugal number, since it uses more digits than its factorization.

6464244400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16160650 (or 16160618 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 6464244400000 its reverse (44424646), we get a palindrome (6464288824646).

The spelling of 6464244400000 in words is "six trillion, four hundred sixty-four billion, two hundred forty-four million, four hundred thousand".