4551736728 has 256 divisors, whose sum is σ = 14561648640. Its totient is φ = 1151539200.

The previous prime is 4551736699. The next prime is 4551736733. The reversal of 4551736728 is 8276371554.

It is a congruent number.

It is an unprimeable number.

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, 14826351 + ... + 14826657.

It is an arithmetic number, because the mean of its divisors is an integer number (56881440).

Almost surely, 2^4551736728 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 4551736728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7280824320).

4551736728 is an abundant number, since it is smaller than the sum of its proper divisors (10009911912).

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

4551736728 is a wasteful number, since it uses less digits than its factorization.

4551736728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 514 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 48.

The square root of 4551736728 is about 67466.5600723796. The cubic root of 4551736728 is about 1657.2666014071.

The spelling of 4551736728 in words is "four billion, five hundred fifty-one million, seven hundred thirty-six thousand, seven hundred twenty-eight".