26111196197 has 12 divisors (see below), whose sum is σ = 26392813356. Its totient is φ = 25832539200.

The previous prime is 26111196193. The next prime is 26111196227. The reversal of 26111196197 is 79169111162.

It can be written as a sum of positive squares in 2 ways, for example, as 282206401 + 25828989796 = 16799^2 + 160714^2 .

It is not a de Polignac number, because 26111196197 - 2² = 26111196193 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26111196191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14894273 + ... + 14896025.

It is an arithmetic number, because the mean of its divisors is an integer number (2199401113).

Almost surely, 2^26111196197 is an apocalyptic number.

It is an amenable number.

26111196197 is a deficient number, since it is larger than the sum of its proper divisors (281617159).

26111196197 is a wasteful number, since it uses less digits than its factorization.

26111196197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3268 (or 3161 counting only the distinct ones).

The product of its digits is 40824, while the sum is 44.

The spelling of 26111196197 in words is "twenty-six billion, one hundred eleven million, one hundred ninety-six thousand, one hundred ninety-seven".