21842346598243 has 8 divisors (see below), whose sum is σ = 22213018298160. Its totient is φ = 21471690312960.

The previous prime is 21842346598187. The next prime is 21842346598279. The reversal of 21842346598243 is 34289564324812.

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-21842346598243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21842346598283) 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, 977578 + ... + 6681343.

It is an arithmetic number, because the mean of its divisors is an integer number (2776627287270).

Almost surely, 2^{21842346598243} is an apocalyptic number.

21842346598243 is a deficient number, since it is larger than the sum of its proper divisors (370671699917).

21842346598243 is an equidigital number, since it uses as much as digits as its factorization.

21842346598243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7707317.

The product of its digits is 79626240, while the sum is 61.

The spelling of 21842346598243 in words is "twenty-one trillion, eight hundred forty-two billion, three hundred forty-six million, five hundred ninety-eight thousand, two hundred forty-three".