1709375885401 has 4 divisors (see below), whose sum is σ = 1720263630052. Its totient is φ = 1698488140752.

The previous prime is 1709375885389. The next prime is 1709375885419. The reversal of 1709375885401 is 1045885739071.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 515380410000 + 1193995475401 = 717900^2 + 1092701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1709375885401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1709375885431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5443872090 + ... + 5443872403.

It is an arithmetic number, because the mean of its divisors is an integer number (430065907513).

Almost surely, 2^{1709375885401} is an apocalyptic number.

It is an amenable number.

1709375885401 is a deficient number, since it is larger than the sum of its proper divisors (10887744651).

1709375885401 is a wasteful number, since it uses less digits than its factorization.

1709375885401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10887744650.

The product of its (nonzero) digits is 8467200, while the sum is 58.

The spelling of 1709375885401 in words is "one trillion, seven hundred nine billion, three hundred seventy-five million, eight hundred eighty-five thousand, four hundred one".