4491155386480 has 640 divisors, whose sum is σ = 12861256826880. Its totient is φ = 1426066145280.

The previous prime is 4491155386427. The next prime is 4491155386493. The reversal of 4491155386480 is 846835511944.

It is a Harshad number since it is a multiple of its sum of digits (58).

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 127 ways as a sum of consecutive naturals, for example, 14629170487 + ... + 14629170793.

It is an arithmetic number, because the mean of its divisors is an integer number (20095713792).

Almost surely, 2^{4491155386480} is an apocalyptic number.

4491155386480 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 4491155386480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6430628413440).

4491155386480 is an abundant number, since it is smaller than the sum of its proper divisors (8370101440400).

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

4491155386480 is a wasteful number, since it uses less digits than its factorization.

4491155386480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 58.

The spelling of 4491155386480 in words is "four trillion, four hundred ninety-one billion, one hundred fifty-five million, three hundred eighty-six thousand, four hundred eighty".