26853012871129 has 2 divisors, whose sum is σ = 26853012871130. Its totient is φ = 26853012871128.

The previous prime is 26853012871099. The next prime is 26853012871133. The reversal of 26853012871129 is 92117821035862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16339057465600 + 10513955405529 = 4042160^2 + 3242523^2 .

It is a cyclic number.

It is not a de Polignac number, because 26853012871129 - 2²⁵ = 26852979316697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26853012871129.

It is not a weakly prime, because it can be changed into another prime (26853012877129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13426506435564 + 13426506435565.

It is an arithmetic number, because the mean of its divisors is an integer number (13426506435565).

Almost surely, 2^{26853012871129} is an apocalyptic number.

It is an amenable number.

26853012871129 is a deficient number, since it is larger than the sum of its proper divisors (1).

26853012871129 is an equidigital number, since it uses as much as digits as its factorization.

26853012871129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 26853012871129 in words is "twenty-six trillion, eight hundred fifty-three billion, twelve million, eight hundred seventy-one thousand, one hundred twenty-nine".