1685992685343 has 8 divisors (see below), whose sum is σ = 2248000952448. Its totient is φ = 1123989770904.

The previous prime is 1685992685291. The next prime is 1685992685353. The reversal of 1685992685343 is 3435862995861.

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

It is not a de Polignac number, because 1685992685343 - 2²⁰ = 1685991636767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685992685353) 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, 534205 + ... + 1912422.

It is an arithmetic number, because the mean of its divisors is an integer number (281000119056).

Almost surely, 2^{1685992685343} is an apocalyptic number.

1685992685343 is a deficient number, since it is larger than the sum of its proper divisors (562008267105).

1685992685343 is a wasteful number, since it uses less digits than its factorization.

1685992685343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676333.

The product of its digits is 335923200, while the sum is 69.

The spelling of 1685992685343 in words is "one trillion, six hundred eighty-five billion, nine hundred ninety-two million, six hundred eighty-five thousand, three hundred forty-three".