4581730645648 has 80 divisors (see below), whose sum is σ = 10090094956480. Its totient is φ = 1997976264192.

The previous prime is 4581730645631. The next prime is 4581730645669. The reversal of 4581730645648 is 8465460371854.

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 15 ways as a sum of consecutive naturals, for example, 79986 + ... + 3028177.

It is an arithmetic number, because the mean of its divisors is an integer number (126126186956).

Almost surely, 2^{4581730645648} 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 4581730645648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5045047478240).

4581730645648 is an abundant number, since it is smaller than the sum of its proper divisors (5508364310832).

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

4581730645648 is a wasteful number, since it uses less digits than its factorization.

4581730645648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108576 (or 3108570 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 61.

The spelling of 4581730645648 in words is "four trillion, five hundred eighty-one billion, seven hundred thirty million, six hundred forty-five thousand, six hundred forty-eight".