6495439104 has 864 divisors, whose sum is σ = 25713192960. Its totient is φ = 1526169600.

The previous prime is 6495439087. The next prime is 6495439109. The reversal of 6495439104 is 4019345946.

It is a self number, because there is not a number n which added to its sum of digits gives 6495439104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6495439109) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 138200809 + ... + 138200855.

It is an arithmetic number, because the mean of its divisors is an integer number (29760640).

Almost surely, 2^6495439104 is an apocalyptic number.

6495439104 is a gapful number since it is divisible by the number (64) 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 6495439104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12856596480).

6495439104 is an abundant number, since it is smaller than the sum of its proper divisors (19217753856).

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

6495439104 is a wasteful number, since it uses less digits than its factorization.

6495439104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 6495439104 is about 80594.2870431894. The cubic root of 6495439104 is about 1865.8189738332.

The spelling of 6495439104 in words is "six billion, four hundred ninety-five million, four hundred thirty-nine thousand, one hundred four".