1688285039871 has 8 divisors (see below), whose sum is σ = 2281882976560. Its totient is φ = 1110105231552.

The previous prime is 1688285039851. The next prime is 1688285039887. The reversal of 1688285039871 is 1789305828861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1688285039871 - 2¹⁴ = 1688285023487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1688285039851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3854531836 + ... + 3854532273.

It is an arithmetic number, because the mean of its divisors is an integer number (285235372070).

Almost surely, 2^{1688285039871} is an apocalyptic number.

1688285039871 is a deficient number, since it is larger than the sum of its proper divisors (593597936689).

1688285039871 is an equidigital number, since it uses as much as digits as its factorization.

1688285039871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7709064185.

The product of its (nonzero) digits is 46448640, while the sum is 66.

The spelling of 1688285039871 in words is "one trillion, six hundred eighty-eight billion, two hundred eighty-five million, thirty-nine thousand, eight hundred seventy-one".