1720945175104 has 21 divisors (see below), whose sum is σ = 3415021407561. Its totient is φ = 860467340160.

The previous prime is 1720945175101. The next prime is 1720945175111. The reversal of 1720945175104 is 4015715490271.

The square root of 1720945175104 is 1311848.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1258327549504 + 462617625600 = 1121752^2 + 680160^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1720945175101) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10412794 + ... + 10576774.

Almost surely, 2^{1720945175104} is an apocalyptic number.

1720945175104 is the 1311848-th square number.

It is an amenable number.

1720945175104 is a deficient number, since it is larger than the sum of its proper divisors (1694076232457).

1720945175104 is an frugal number, since it uses more digits than its factorization.

1720945175104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327974 (or 163983 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 1720945175104 in words is "one trillion, seven hundred twenty billion, nine hundred forty-five million, one hundred seventy-five thousand, one hundred four".