26886108901 has 2 divisors, whose sum is σ = 26886108902. Its totient is φ = 26886108900.

The previous prime is 26886108833. The next prime is 26886108929. The reversal of 26886108901 is 10980168862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20278044801 + 6608064100 = 142401^2 + 81290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26886108901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26886138901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13443054450 + 13443054451.

It is an arithmetic number, because the mean of its divisors is an integer number (13443054451).

Almost surely, 2^26886108901 is an apocalyptic number.

It is an amenable number.

26886108901 is a deficient number, since it is larger than the sum of its proper divisors (1).

26886108901 is an equidigital number, since it uses as much as digits as its factorization.

26886108901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 49.

The spelling of 26886108901 in words is "twenty-six billion, eight hundred eighty-six million, one hundred eight thousand, nine hundred one".