26102712373861 has 2 divisors, whose sum is σ = 26102712373862. Its totient is φ = 26102712373860.

The previous prime is 26102712373811. The next prime is 26102712373891. The reversal of 26102712373861 is 16837321720162.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19188342202500 + 6914370171361 = 4380450^2 + 2629519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26102712373861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26102712373811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13051356186930 + 13051356186931.

It is an arithmetic number, because the mean of its divisors is an integer number (13051356186931).

Almost surely, 2^{26102712373861} is an apocalyptic number.

It is an amenable number.

26102712373861 is a deficient number, since it is larger than the sum of its proper divisors (1).

26102712373861 is an equidigital number, since it uses as much as digits as its factorization.

26102712373861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 26102712373861 in words is "twenty-six trillion, one hundred two billion, seven hundred twelve million, three hundred seventy-three thousand, eight hundred sixty-one".