1720080737460 has 480 divisors, whose sum is σ = 5864521969152. Its totient is φ = 420850805760.

The previous prime is 1720080737449. The next prime is 1720080737471. The reversal of 1720080737460 is 647370800271.

1720080737460 is a `hidden beast` number, since 17 + 200 + 8 + 0 + 7 + 374 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (1720080737449) and next prime (1720080737471).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 159 ways as a sum of consecutive naturals, for example, 97873234 + ... + 97890806.

Almost surely, 2^{1720080737460} is an apocalyptic number.

1720080737460 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 1720080737460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2932260984576).

1720080737460 is an abundant number, since it is smaller than the sum of its proper divisors (4144441231692).

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

1720080737460 is a wasteful number, since it uses less digits than its factorization.

1720080737460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17725 (or 17714 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 1720080737460 in words is "one trillion, seven hundred twenty billion, eighty million, seven hundred thirty-seven thousand, four hundred sixty".