21044022794 has 8 divisors (see below), whose sum is σ = 31566801600. Its totient is φ = 10521755596.

The previous prime is 21044022787. The next prime is 21044022821. The reversal of 21044022794 is 49722044012.

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

It is a Curzon 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, 857 + ... + 205155.

It is an arithmetic number, because the mean of its divisors is an integer number (3945850200).

Almost surely, 2^21044022794 is an apocalyptic number.

21044022794 is a deficient number, since it is larger than the sum of its proper divisors (10522778806).

21044022794 is a wasteful number, since it uses less digits than its factorization.

21044022794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255804.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 21044022794 in words is "twenty-one billion, forty-four million, twenty-two thousand, seven hundred ninety-four".