20733327473 has 2 divisors, whose sum is σ = 20733327474. Its totient is φ = 20733327472.

The previous prime is 20733327451. The next prime is 20733327479. The reversal of 20733327473 is 37472333702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16976005264 + 3757322209 = 130292^2 + 61297^2 .

It is a cyclic number.

It is not a de Polignac number, because 20733327473 - 2¹⁴ = 20733311089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20733327473.

It is not a weakly prime, because it can be changed into another prime (20733327479) 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 as a sum of consecutive naturals, namely, 10366663736 + 10366663737.

It is an arithmetic number, because the mean of its divisors is an integer number (10366663737).

Almost surely, 2^20733327473 is an apocalyptic number.

It is an amenable number.

20733327473 is a deficient number, since it is larger than the sum of its proper divisors (1).

20733327473 is an equidigital number, since it uses as much as digits as its factorization.

20733327473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 41.

The spelling of 20733327473 in words is "twenty billion, seven hundred thirty-three million, three hundred twenty-seven thousand, four hundred seventy-three".