26616828193 has 2 divisors, whose sum is σ = 26616828194. Its totient is φ = 26616828192.

The previous prime is 26616828157. The next prime is 26616828221. The reversal of 26616828193 is 39182861662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16974962944 + 9641865249 = 130288^2 + 98193^2 .

It is a cyclic number.

It is not a de Polignac number, because 26616828193 - 2³³ = 18026893601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26616828193.

It is not a weakly prime, because it can be changed into another prime (26616828143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13308414096 + 13308414097.

It is an arithmetic number, because the mean of its divisors is an integer number (13308414097).

Almost surely, 2^26616828193 is an apocalyptic number.

It is an amenable number.

26616828193 is a deficient number, since it is larger than the sum of its proper divisors (1).

26616828193 is an equidigital number, since it uses as much as digits as its factorization.

26616828193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 52.

The spelling of 26616828193 in words is "twenty-six billion, six hundred sixteen million, eight hundred twenty-eight thousand, one hundred ninety-three".