6439462848 has 448 divisors, whose sum is σ = 24069283840. Its totient is φ = 1642291200.

The previous prime is 6439462837. The next prime is 6439462849. The reversal of 6439462848 is 8482649346.

6439462848 is a `hidden beast` number, since 6 + 4 + 3 + 9 + 4 + 628 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×6439462848² = 82933363541544542208, which contains 22 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 6439462794 and 6439462803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6439462849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4874028 + ... + 4875348.

It is an arithmetic number, because the mean of its divisors is an integer number (53726080).

Almost surely, 2^6439462848 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 6439462848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12034641920).

6439462848 is an abundant number, since it is smaller than the sum of its proper divisors (17629820992).

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

6439462848 is a wasteful number, since it uses less digits than its factorization.

6439462848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393 (or 1377 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 54.

The square root of 6439462848 is about 80246.2637634924. The cubic root of 6439462848 is about 1860.4437650843.

The spelling of 6439462848 in words is "six billion, four hundred thirty-nine million, four hundred sixty-two thousand, eight hundred forty-eight".