4491616548480 has 128 divisors (see below), whose sum is σ = 14324377996800. Its totient is φ = 1197149491200.

The previous prime is 4491616548467. The next prime is 4491616548547. The reversal of 4491616548480 is 848456161944.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3146386 + ... + 4345454.

It is an arithmetic number, because the mean of its divisors is an integer number (111909203100).

Almost surely, 2^{4491616548480} is an apocalyptic number.

4491616548480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4491616548480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7162188998400).

4491616548480 is an abundant number, since it is smaller than the sum of its proper divisors (9832761448320).

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

4491616548480 is a wasteful number, since it uses less digits than its factorization.

4491616548480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201042 (or 1201030 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 60.

The spelling of 4491616548480 in words is "four trillion, four hundred ninety-one billion, six hundred sixteen million, five hundred forty-eight thousand, four hundred eighty".