20004502634497 has 2 divisors, whose sum is σ = 20004502634498. Its totient is φ = 20004502634496.

The previous prime is 20004502634341. The next prime is 20004502634551. The reversal of 20004502634497 is 79443620540002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11265360544881 + 8739142089616 = 3356391^2 + 2956204^2 .

It is a cyclic number.

It is not a de Polignac number, because 20004502634497 - 2¹¹ = 20004502632449 is a prime.

It is not a weakly prime, because it can be changed into another prime (20004503634497) 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 as a sum of consecutive naturals, namely, 10002251317248 + 10002251317249.

It is an arithmetic number, because the mean of its divisors is an integer number (10002251317249).

Almost surely, 2^{20004502634497} is an apocalyptic number.

It is an amenable number.

20004502634497 is a deficient number, since it is larger than the sum of its proper divisors (1).

20004502634497 is an equidigital number, since it uses as much as digits as its factorization.

20004502634497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 20004502634497 in words is "twenty trillion, four billion, five hundred two million, six hundred thirty-four thousand, four hundred ninety-seven".