6495173568 has 280 divisors, whose sum is σ = 21410533760. Its totient is φ = 1933424640.

The previous prime is 6495173501. The next prime is 6495173609. The reversal of 6495173568 is 8653715946.

6495173568 is a `hidden beast` number, since 6 + 4 + 9 + 5 + 1 + 73 + 568 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2087598 + ... + 2090706.

It is an arithmetic number, because the mean of its divisors is an integer number (76466192).

Almost surely, 2^6495173568 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 6495173568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10705266880).

6495173568 is an abundant number, since it is smaller than the sum of its proper divisors (14915360192).

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

6495173568 is a wasteful number, since it uses less digits than its factorization.

6495173568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177 (or 3158 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 6495173568 is about 80592.6396639296. The cubic root of 6495173568 is about 1865.7935483590.

The spelling of 6495173568 in words is "six billion, four hundred ninety-five million, one hundred seventy-three thousand, five hundred sixty-eight".