989316802080 has 336 divisors, whose sum is σ = 3552322881240. Its totient is φ = 260201631744.

The previous prime is 989316802043. The next prime is 989316802081. The reversal of 989316802080 is 80208613989.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 647554965264 + 341761836816 = 804708^2 + 584604^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (989316802081) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 8456626 + ... + 8572814.

Almost surely, 2^989316802080 is an apocalyptic number.

989316802080 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989316802080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1776161440620).

989316802080 is an abundant number, since it is smaller than the sum of its proper divisors (2563006079160).

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

989316802080 is a wasteful number, since it uses less digits than its factorization.

989316802080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116295 (or 116272 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 989316802080 in words is "nine hundred eighty-nine billion, three hundred sixteen million, eight hundred two thousand, eighty".