989445008963232 has 288 divisors, whose sum is σ = 2999150704368000. Its totient is φ = 308536102619136.

The previous prime is 989445008963231. The next prime is 989445008963263. The reversal of 989445008963232 is 232369800544989.

It is a happy number.

989445008963232 is a `hidden beast` number, since 9 + 8 + 9 + 4 + 4 + 500 + 8 + 96 + 3 + 23 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-3 number, since 3×989445008963232³ (a number of 46 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (989445008963231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194186898 + ... + 199217070.

It is an arithmetic number, because the mean of its divisors is an integer number (10413717723500).

Almost surely, 2^{989445008963232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989445008963232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499575352184000).

989445008963232 is an abundant number, since it is smaller than the sum of its proper divisors (2009705695404768).

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

989445008963232 is a wasteful number, since it uses less digits than its factorization.

989445008963232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030660 (or 5030649 counting only the distinct ones).

The product of its (nonzero) digits is 806215680, while the sum is 72.

The spelling of 989445008963232 in words is "nine hundred eighty-nine trillion, four hundred forty-five billion, eight million, nine hundred sixty-three thousand, two hundred thirty-two".