26073202189 has 2 divisors, whose sum is σ = 26073202190. Its totient is φ = 26073202188.

The previous prime is 26073202187. The next prime is 26073202223. The reversal of 26073202189 is 98120237062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26012206089 + 60996100 = 161283^2 + 7810^2 .

It is a cyclic number.

It is not a de Polignac number, because 26073202189 - 2¹ = 26073202187 is a prime.

Together with 26073202187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26073202187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13036601094 + 13036601095.

It is an arithmetic number, because the mean of its divisors is an integer number (13036601095).

Almost surely, 2^26073202189 is an apocalyptic number.

It is an amenable number.

26073202189 is a deficient number, since it is larger than the sum of its proper divisors (1).

26073202189 is an equidigital number, since it uses as much as digits as its factorization.

26073202189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 26073202189 in words is "twenty-six billion, seventy-three million, two hundred two thousand, one hundred eighty-nine".