26196563873 has 2 divisors, whose sum is σ = 26196563874. Its totient is φ = 26196563872.

The previous prime is 26196563849. The next prime is 26196563957. The reversal of 26196563873 is 37836569162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19523634529 + 6672929344 = 139727^2 + 81688^2 .

It is a cyclic number.

It is not a de Polignac number, because 26196563873 - 2¹⁰ = 26196562849 is a prime.

It is not a weakly prime, because it can be changed into another prime (26196563803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13098281936 + 13098281937.

It is an arithmetic number, because the mean of its divisors is an integer number (13098281937).

Almost surely, 2^26196563873 is an apocalyptic number.

It is an amenable number.

26196563873 is a deficient number, since it is larger than the sum of its proper divisors (1).

26196563873 is an equidigital number, since it uses as much as digits as its factorization.

26196563873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 56.

The spelling of 26196563873 in words is "twenty-six billion, one hundred ninety-six million, five hundred sixty-three thousand, eight hundred seventy-three".