19683968942843 has 8 divisors (see below), whose sum is σ = 20521768413168. Its totient is φ = 18863443688544.

The previous prime is 19683968942839. The next prime is 19683968942861. The reversal of 19683968942843 is 34824986938691.

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

It is a cyclic number.

It is not a de Polignac number, because 19683968942843 - 2² = 19683968942839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19683968932843) 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, 4318551680 + ... + 4318556237.

It is an arithmetic number, because the mean of its divisors is an integer number (2565221051646).

Almost surely, 2^{19683968942843} is an apocalyptic number.

19683968942843 is a deficient number, since it is larger than the sum of its proper divisors (837799470325).

19683968942843 is an equidigital number, since it uses as much as digits as its factorization.

19683968942843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8637108013.

The product of its digits is 3869835264, while the sum is 80.

The spelling of 19683968942843 in words is "nineteen trillion, six hundred eighty-three billion, nine hundred sixty-eight million, nine hundred forty-two thousand, eight hundred forty-three".