6489097056 has 288 divisors, whose sum is σ = 21582288000. Its totient is φ = 1890749952.

The previous prime is 6489097049. The next prime is 6489097057. The reversal of 6489097056 is 6507909846.

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

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 6489096993 and 6489097011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6489097057) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2773135 + ... + 2775473.

It is an arithmetic number, because the mean of its divisors is an integer number (74938500).

Almost surely, 2^6489097056 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 6489097056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10791144000).

6489097056 is an abundant number, since it is smaller than the sum of its proper divisors (15093190944).

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

6489097056 is a wasteful number, since it uses less digits than its factorization.

6489097056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403 (or 2376 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 6489097056 is about 80554.9319160534. The cubic root of 6489097056 is about 1865.2115236610.

The spelling of 6489097056 in words is "six billion, four hundred eighty-nine million, ninety-seven thousand, fifty-six".