20441776073 has 4 divisors (see below), whose sum is σ = 20442158868. Its totient is φ = 20441393280.

The previous prime is 20441776039. The next prime is 20441776081. The reversal of 20441776073 is 37067714402.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19832525584 + 609250489 = 140828^2 + 24683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20441776073 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 20441776073.

It is not an unprimeable number, because it can be changed into a prime (20441776093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95168 + ... + 223473.

It is an arithmetic number, because the mean of its divisors is an integer number (5110539717).

Almost surely, 2^20441776073 is an apocalyptic number.

It is an amenable number.

20441776073 is a deficient number, since it is larger than the sum of its proper divisors (382795).

20441776073 is an equidigital number, since it uses as much as digits as its factorization.

20441776073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382794.

The product of its (nonzero) digits is 197568, while the sum is 41.

The spelling of 20441776073 in words is "twenty billion, four hundred forty-one million, seven hundred seventy-six thousand, seventy-three".