21833338384063 has 4 divisors (see below), whose sum is σ = 21833379649480. Its totient is φ = 21833297118648.

The previous prime is 21833338384037. The next prime is 21833338384073. The reversal of 21833338384063 is 36048383333812.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21833338384063 - 2²⁹ = 21832801513151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21833338383995 and 21833338384013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21833338384003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19828620 + ... + 20900737.

It is an arithmetic number, because the mean of its divisors is an integer number (5458344912370).

Almost surely, 2^{21833338384063} is an apocalyptic number.

21833338384063 is a deficient number, since it is larger than the sum of its proper divisors (41265417).

21833338384063 is an equidigital number, since it uses as much as digits as its factorization.

21833338384063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41265416.

The product of its (nonzero) digits is 17915904, while the sum is 55.

The spelling of 21833338384063 in words is "twenty-one trillion, eight hundred thirty-three billion, three hundred thirty-eight million, three hundred eighty-four thousand, sixty-three".