1720810113875 has 16 divisors (see below), whose sum is σ = 2147622102912. Its totient is φ = 1376615347200.

The previous prime is 1720810113853. The next prime is 1720810113991. The reversal of 1720810113875 is 5783110180271.

It is not a de Polignac number, because 1720810113875 - 2¹⁶ = 1720810048339 is a prime.

It is a super-2 number, since 2×1720810113875² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6053174 + ... + 6331076.

It is an arithmetic number, because the mean of its divisors is an integer number (134226381432).

Almost surely, 2^{1720810113875} is an apocalyptic number.

1720810113875 is a deficient number, since it is larger than the sum of its proper divisors (426811989037).

1720810113875 is an equidigital number, since it uses as much as digits as its factorization.

1720810113875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327455 (or 327445 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 44.

The spelling of 1720810113875 in words is "one trillion, seven hundred twenty billion, eight hundred ten million, one hundred thirteen thousand, eight hundred seventy-five".