4489798781656 has 16 divisors (see below), whose sum is σ = 8427906559800. Its totient is φ = 2242357032384.

The previous prime is 4489798781561. The next prime is 4489798781681. The reversal of 4489798781656 is 6561878979844.

It is a self number, because there is not a number n which added to its sum of digits gives 4489798781656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317787301 + ... + 317801428.

Almost surely, 2^{4489798781656} is an apocalyptic number.

It is an amenable number.

4489798781656 is a deficient number, since it is larger than the sum of its proper divisors (3938107778144).

4489798781656 is a wasteful number, since it uses less digits than its factorization.

4489798781656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635589618 (or 635589614 counting only the distinct ones).

The product of its digits is 5852528640, while the sum is 82.

The spelling of 4489798781656 in words is "four trillion, four hundred eighty-nine billion, seven hundred ninety-eight million, seven hundred eighty-one thousand, six hundred fifty-six".