1685042633843 has 8 divisors (see below), whose sum is σ = 1694272719216. Its totient is φ = 1675835481600.

The previous prime is 1685042633837. The next prime is 1685042633867. The reversal of 1685042633843 is 3483362405861.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1685042633843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1685042623843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5585918 + ... + 5879843.

It is an arithmetic number, because the mean of its divisors is an integer number (211784089902).

Almost surely, 2^{1685042633843} is an apocalyptic number.

1685042633843 is a deficient number, since it is larger than the sum of its proper divisors (9230085373).

1685042633843 is a wasteful number, since it uses less digits than its factorization.

1685042633843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11466565.

The product of its (nonzero) digits is 9953280, while the sum is 53.

The spelling of 1685042633843 in words is "one trillion, six hundred eighty-five billion, forty-two million, six hundred thirty-three thousand, eight hundred forty-three".