989322836544 has 168 divisors, whose sum is σ = 3411387071040. Its totient is φ = 267786611712.

The previous prime is 989322836539. The next prime is 989322836573. The reversal of 989322836544 is 445638223989.

It is a happy number.

989322836544 is a `hidden beast` number, since 9 + 8 + 9 + 3 + 2 + 2 + 83 + 6 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×989322836544² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6380439 + ... + 6533654.

Almost surely, 2^989322836544 is an apocalyptic number.

It is an amenable number.

989322836544 is an abundant number, since it is smaller than the sum of its proper divisors (2422064234496).

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

989322836544 is a wasteful number, since it uses less digits than its factorization.

989322836544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12914137 (or 12914124 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 63.

The spelling of 989322836544 in words is "nine hundred eighty-nine billion, three hundred twenty-two million, eight hundred thirty-six thousand, five hundred forty-four".