20588328317 has 2 divisors, whose sum is σ = 20588328318. Its totient is φ = 20588328316.

The previous prime is 20588328269. The next prime is 20588328323. The reversal of 20588328317 is 71382388502.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20374993081 + 213335236 = 142741^2 + 14606^2 .

It is a cyclic number.

It is not a de Polignac number, because 20588328317 - 2⁶ = 20588328253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20588328337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10294164158 + 10294164159.

It is an arithmetic number, because the mean of its divisors is an integer number (10294164159).

Almost surely, 2^20588328317 is an apocalyptic number.

It is an amenable number.

20588328317 is a deficient number, since it is larger than the sum of its proper divisors (1).

20588328317 is an equidigital number, since it uses as much as digits as its factorization.

20588328317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 20588328317 in words is "twenty billion, five hundred eighty-eight million, three hundred twenty-eight thousand, three hundred seventeen".