989333433648 has 100 divisors (see below), whose sum is σ = 3272477728080. Its totient is φ = 282666692736.

The previous prime is 989333433637. The next prime is 989333433689. The reversal of 989333433648 is 846334333989.

989333433648 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 54517683 + ... + 54535826.

Almost surely, 2^989333433648 is an apocalyptic number.

It is an amenable number.

989333433648 is an abundant number, since it is smaller than the sum of its proper divisors (2283144294432).

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

989333433648 is a wasteful number, since it uses less digits than its factorization.

989333433648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109053536 (or 109053521 counting only the distinct ones).

The product of its digits is 120932352, while the sum is 63.

The spelling of 989333433648 in words is "nine hundred eighty-nine billion, three hundred thirty-three million, four hundred thirty-three thousand, six hundred forty-eight".