1720469842560 has 768 divisors, whose sum is σ = 7173852739200. Its totient is φ = 388496424960.

The previous prime is 1720469842543. The next prime is 1720469842573. The reversal of 1720469842560 is 652489640271.

1720469842560 is a `hidden beast` number, since 1 + 7 + 20 + 469 + 84 + 25 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1720469842497 and 1720469842506.

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 95 ways as a sum of consecutive naturals, for example, 70265520 + ... + 70290000.

Almost surely, 2^{1720469842560} is an apocalyptic number.

1720469842560 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 1720469842560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3586926369600).

1720469842560 is an abundant number, since it is smaller than the sum of its proper divisors (5453382896640).

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

1720469842560 is a wasteful number, since it uses less digits than its factorization.

1720469842560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24606 (or 24581 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 1720469842560 in words is "one trillion, seven hundred twenty billion, four hundred sixty-nine million, eight hundred forty-two thousand, five hundred sixty".