20608326293 has 2 divisors, whose sum is σ = 20608326294. Its totient is φ = 20608326292.

The previous prime is 20608326199. The next prime is 20608326331. The reversal of 20608326293 is 39262380602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20540049124 + 68277169 = 143318^2 + 8263^2 .

It is a cyclic number.

It is not a de Polignac number, because 20608326293 - 2²⁶ = 20541217429 is a prime.

It is a super-2 number, since 2×20608326293² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20608326293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20608323293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10304163146 + 10304163147.

It is an arithmetic number, because the mean of its divisors is an integer number (10304163147).

Almost surely, 2^20608326293 is an apocalyptic number.

It is an amenable number.

20608326293 is a deficient number, since it is larger than the sum of its proper divisors (1).

20608326293 is an equidigital number, since it uses as much as digits as its factorization.

20608326293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 20608326293 in words is "twenty billion, six hundred eight million, three hundred twenty-six thousand, two hundred ninety-three".