6473404728 has 384 divisors, whose sum is σ = 21964800000. Its totient is φ = 1681295616.

The previous prime is 6473404711. The next prime is 6473404733. The reversal of 6473404728 is 8274043746.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32529573 + ... + 32529771.

It is an arithmetic number, because the mean of its divisors is an integer number (57200000).

Almost surely, 2^6473404728 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 6473404728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10982400000).

6473404728 is an abundant number, since it is smaller than the sum of its proper divisors (15491395272).

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

6473404728 is a wasteful number, since it uses less digits than its factorization.

6473404728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The square root of 6473404728 is about 80457.4715486387. The cubic root of 6473404728 is about 1863.7067875227.

The spelling of 6473404728 in words is "six billion, four hundred seventy-three million, four hundred four thousand, seven hundred twenty-eight".