1720797492960 has 1536 divisors, whose sum is σ = 7642183127040. Its totient is φ = 351947980800.

The previous prime is 1720797492901. The next prime is 1720797492979. The reversal of 1720797492960 is 692947970271.

1720797492960 is a `hidden beast` number, since 1 + 72 + 0 + 79 + 7 + 492 + 9 + 6 + 0 = 666.

It is a super-2 number, since 2×1720797492960² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 3884418499 + ... + 3884418941.

It is an arithmetic number, because the mean of its divisors is an integer number (4975379640).

Almost surely, 2^{1720797492960} is an apocalyptic number.

1720797492960 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 1720797492960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3821091563520).

1720797492960 is an abundant number, since it is smaller than the sum of its proper divisors (5921385634080).

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

1720797492960 is a wasteful number, since it uses less digits than its factorization.

1720797492960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 24004512, while the sum is 63.

The spelling of 1720797492960 in words is "one trillion, seven hundred twenty billion, seven hundred ninety-seven million, four hundred ninety-two thousand, nine hundred sixty".