1720988188320 has 384 divisors, whose sum is σ = 5584754552832. Its totient is φ = 445318041600.

The previous prime is 1720988188301. The next prime is 1720988188327. The reversal of 1720988188320 is 238818890271.

It is not an unprimeable number, because it can be changed into a prime (1720988188327) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 849031147 + ... + 849033173.

It is an arithmetic number, because the mean of its divisors is an integer number (14543631648).

Almost surely, 2^{1720988188320} is an apocalyptic number.

1720988188320 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 1720988188320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2792377276416).

1720988188320 is an abundant number, since it is smaller than the sum of its proper divisors (3863766364512).

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

1720988188320 is a wasteful number, since it uses less digits than its factorization.

1720988188320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484 (or 2476 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 57.

The spelling of 1720988188320 in words is "one trillion, seven hundred twenty billion, nine hundred eighty-eight million, one hundred eighty-eight thousand, three hundred twenty".