20443324771 has 8 divisors (see below), whose sum is σ = 20497356000. Its totient is φ = 20389354560.

The previous prime is 20443324763. The next prime is 20443324793. The reversal of 20443324771 is 17742334402.

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

It is a cyclic number.

It is not a de Polignac number, because 20443324771 - 2³ = 20443324763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20443324771.

It is not an unprimeable number, because it can be changed into a prime (20443324271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699255 + ... + 727903.

It is an arithmetic number, because the mean of its divisors is an integer number (2562169500).

Almost surely, 2^20443324771 is an apocalyptic number.

20443324771 is a deficient number, since it is larger than the sum of its proper divisors (54031229).

20443324771 is a wasteful number, since it uses less digits than its factorization.

20443324771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30509.

The product of its (nonzero) digits is 112896, while the sum is 37.

The spelling of 20443324771 in words is "twenty billion, four hundred forty-three million, three hundred twenty-four thousand, seven hundred seventy-one".