1999382219520 has 288 divisors, whose sum is σ = 7306714598400. Its totient is φ = 456439971840.

The previous prime is 1999382219509. The next prime is 1999382219533. The reversal of 1999382219520 is 259122839991.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

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

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, 22023181 + ... + 22113779.

It is an arithmetic number, because the mean of its divisors is an integer number (25370536800).

Almost surely, 2^{1999382219520} is an apocalyptic number.

1999382219520 is a gapful number since it is divisible by the number (10) 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 1999382219520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3653357299200).

1999382219520 is an abundant number, since it is smaller than the sum of its proper divisors (5307332378880).

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

1999382219520 is an equidigital number, since it uses as much as digits as its factorization.

1999382219520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91451 (or 91437 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 60.

The spelling of 1999382219520 in words is "one trillion, nine hundred ninety-nine billion, three hundred eighty-two million, two hundred nineteen thousand, five hundred twenty".