21794738784934 has 8 divisors (see below), whose sum is σ = 32927303200680. Its totient is φ = 10818971051376.

The previous prime is 21794738784913. The next prime is 21794738784953. The reversal of 21794738784934 is 43948783749712.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39199170199 + ... + 39199170754.

It is an arithmetic number, because the mean of its divisors is an integer number (4115912900085).

Almost surely, 2^{21794738784934} is an apocalyptic number.

21794738784934 is a deficient number, since it is larger than the sum of its proper divisors (11132564415746).

21794738784934 is a wasteful number, since it uses less digits than its factorization.

21794738784934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78398341094.

The product of its digits is 2048385024, while the sum is 76.

The spelling of 21794738784934 in words is "twenty-one trillion, seven hundred ninety-four billion, seven hundred thirty-eight million, seven hundred eighty-four thousand, nine hundred thirty-four".