4444064820640 has 48 divisors (see below), whose sum is σ = 10499242844160. Its totient is φ = 1777602274560.

The previous prime is 4444064820631. The next prime is 4444064820661. The reversal of 4444064820640 is 460284604444.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16661125 + ... + 16925755.

It is an arithmetic number, because the mean of its divisors is an integer number (218734225920).

Almost surely, 2^{4444064820640} is an apocalyptic number.

4444064820640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444064820640 is an abundant number, since it is smaller than the sum of its proper divisors (6055178023520).

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

4444064820640 is a wasteful number, since it uses less digits than its factorization.

4444064820640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369605 (or 369597 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 46.

The spelling of 4444064820640 in words is "four trillion, four hundred forty-four billion, sixty-four million, eight hundred twenty thousand, six hundred forty".