2019451340480 has 224 divisors, whose sum is σ = 5778515687040. Its totient is φ = 657547591680.

The previous prime is 2019451340477. The next prime is 2019451340503. The reversal of 2019451340480 is 840431549102.

It is a tau number, because it is divible by the number of its divisors (224).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3707744 + ... + 4217376.

Almost surely, 2^{2019451340480} is an apocalyptic number.

2019451340480 is a gapful number since it is divisible by the number (20) 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 2019451340480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2889257843520).

2019451340480 is an abundant number, since it is smaller than the sum of its proper divisors (3759064346560).

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

2019451340480 is a wasteful number, since it uses less digits than its factorization.

2019451340480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509747 (or 509737 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

Adding to 2019451340480 its reverse (840431549102), we get a palindrome (2859882889582).

The spelling of 2019451340480 in words is "two trillion, nineteen billion, four hundred fifty-one million, three hundred forty thousand, four hundred eighty".