20327673273 has 4 divisors (see below), whose sum is σ = 27103564368. Its totient is φ = 13551782180.

The previous prime is 20327673271. The next prime is 20327673281. The reversal of 20327673273 is 37237672302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20327673273 - 2¹ = 20327673271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20327673271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3387945543 + ... + 3387945548.

It is an arithmetic number, because the mean of its divisors is an integer number (6775891092).

Almost surely, 2^20327673273 is an apocalyptic number.

It is an amenable number.

20327673273 is a deficient number, since it is larger than the sum of its proper divisors (6775891095).

20327673273 is an equidigital number, since it uses as much as digits as its factorization.

20327673273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6775891094.

The product of its (nonzero) digits is 444528, while the sum is 42.

The spelling of 20327673273 in words is "twenty billion, three hundred twenty-seven million, six hundred seventy-three thousand, two hundred seventy-three".