6489623328 has 96 divisors (see below), whose sum is σ = 18349535232. Its totient is φ = 2002387200.

The previous prime is 6489623321. The next prime is 6489623383. The reversal of 6489623328 is 8233269846.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (6489623321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21043 + ... + 115853.

It is an arithmetic number, because the mean of its divisors is an integer number (191140992).

Almost surely, 2^6489623328 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 6489623328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9174767616).

6489623328 is an abundant number, since it is smaller than the sum of its proper divisors (11859911904).

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

6489623328 is a wasteful number, since it uses less digits than its factorization.

6489623328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94878 (or 94870 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 51.

The square root of 6489623328 is about 80558.1983909769. The cubic root of 6489623328 is about 1865.2619457796.

The spelling of 6489623328 in words is "six billion, four hundred eighty-nine million, six hundred twenty-three thousand, three hundred twenty-eight".