20026602173 has 2 divisors, whose sum is σ = 20026602174. Its totient is φ = 20026602172.

The previous prime is 20026602143. The next prime is 20026602179. The reversal of 20026602173 is 37120662002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19929815929 + 96786244 = 141173^2 + 9838^2 .

It is a cyclic number.

It is not a de Polignac number, because 20026602173 - 2¹⁶ = 20026536637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20026602179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10013301086 + 10013301087.

It is an arithmetic number, because the mean of its divisors is an integer number (10013301087).

Almost surely, 2^20026602173 is an apocalyptic number.

It is an amenable number.

20026602173 is a deficient number, since it is larger than the sum of its proper divisors (1).

20026602173 is an equidigital number, since it uses as much as digits as its factorization.

20026602173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The spelling of 20026602173 in words is "twenty billion, twenty-six million, six hundred two thousand, one hundred seventy-three".