4528721033928 has 512 divisors, whose sum is σ = 16084389888000. Its totient is φ = 1148472898560.

The previous prime is 4528721033923. The next prime is 4528721033999. The reversal of 4528721033928 is 8293301278254.

4528721033928 is a `hidden beast` number, since 4 + 5 + 287 + 2 + 1 + 0 + 339 + 28 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (4528721033923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 95642083 + ... + 95689421.

It is an arithmetic number, because the mean of its divisors is an integer number (31414824000).

Almost surely, 2^{4528721033928} 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 4528721033928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8042194944000).

4528721033928 is an abundant number, since it is smaller than the sum of its proper divisors (11555668854072).

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

4528721033928 is a wasteful number, since it uses less digits than its factorization.

4528721033928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47562 (or 47552 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 4528721033928 in words is "four trillion, five hundred twenty-eight billion, seven hundred twenty-one million, thirty-three thousand, nine hundred twenty-eight".