1708381664872 has 32 divisors (see below), whose sum is σ = 3219925691520. Its totient is φ = 849746113920.

The previous prime is 1708381664789. The next prime is 1708381664879. The reversal of 1708381664872 is 2784661838071.

It is a self number, because there is not a number n which added to its sum of digits gives 1708381664872.

It is not an unprimeable number, because it can be changed into a prime (1708381664879) 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 7 ways as a sum of consecutive naturals, for example, 504273 + ... + 1915999.

It is an arithmetic number, because the mean of its divisors is an integer number (100622677860).

Almost surely, 2^{1708381664872} is an apocalyptic number.

It is an amenable number.

1708381664872 is a deficient number, since it is larger than the sum of its proper divisors (1511544026648).

1708381664872 is a wasteful number, since it uses less digits than its factorization.

1708381664872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412521 (or 1412517 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 1708381664872 in words is "one trillion, seven hundred eight billion, three hundred eighty-one million, six hundred sixty-four thousand, eight hundred seventy-two".