21833224774 has 8 divisors (see below), whose sum is σ = 32877269208. Its totient is φ = 10874135040.

The previous prime is 21833224771. The next prime is 21833224793. The reversal of 21833224774 is 47742233812.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21833224774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21833224771) 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, 21238032 + ... + 21239059.

It is an arithmetic number, because the mean of its divisors is an integer number (4109658651).

Almost surely, 2^21833224774 is an apocalyptic number.

21833224774 is a deficient number, since it is larger than the sum of its proper divisors (11044044434).

21833224774 is a wasteful number, since it uses less digits than its factorization.

21833224774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42477350.

The product of its digits is 451584, while the sum is 43.

The spelling of 21833224774 in words is "twenty-one billion, eight hundred thirty-three million, two hundred twenty-four thousand, seven hundred seventy-four".