20073002617 has 2 divisors, whose sum is σ = 20073002618. Its totient is φ = 20073002616.

The previous prime is 20073002581. The next prime is 20073002623. The reversal of 20073002617 is 71620037002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17928942201 + 2144060416 = 133899^2 + 46304^2 .

It is a cyclic number.

It is not a de Polignac number, because 20073002617 - 2¹⁵ = 20072969849 is a prime.

It is not a weakly prime, because it can be changed into another prime (20073002657) 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, 10036501308 + 10036501309.

It is an arithmetic number, because the mean of its divisors is an integer number (10036501309).

Almost surely, 2^20073002617 is an apocalyptic number.

It is an amenable number.

20073002617 is a deficient number, since it is larger than the sum of its proper divisors (1).

20073002617 is an equidigital number, since it uses as much as digits as its factorization.

20073002617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 28.

Adding to 20073002617 its reverse (71620037002), we get a palindrome (91693039619).

The spelling of 20073002617 in words is "twenty billion, seventy-three million, two thousand, six hundred seventeen".