4428730885464 has 160 divisors (see below), whose sum is σ = 12694317926400. Its totient is φ = 1441886685120.

The previous prime is 4428730885433. The next prime is 4428730885487. The reversal of 4428730885464 is 4645880378244.

It is a happy number.

4428730885464 is a `hidden beast` number, since 4 + 4 + 2 + 8 + 7 + 3 + 0 + 88 + 546 + 4 = 666.

It is a super-2 number, since 2×4428730885464² (a number of 26 digits) contains 22 as substring.

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 39 ways as a sum of consecutive naturals, for example, 14805817 + ... + 15101975.

It is an arithmetic number, because the mean of its divisors is an integer number (79339487040).

Almost surely, 2^{4428730885464} 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 4428730885464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6347158963200).

4428730885464 is an abundant number, since it is smaller than the sum of its proper divisors (8265587040936).

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

4428730885464 is a wasteful number, since it uses less digits than its factorization.

4428730885464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296715 (or 296702 counting only the distinct ones).

The product of its (nonzero) digits is 165150720, while the sum is 63.

The spelling of 4428730885464 in words is "four trillion, four hundred twenty-eight billion, seven hundred thirty million, eight hundred eighty-five thousand, four hundred sixty-four".