25869771113 has 2 divisors, whose sum is σ = 25869771114. Its totient is φ = 25869771112.

The previous prime is 25869771101. The next prime is 25869771127. The reversal of 25869771113 is 31117796852.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15955984489 + 9913786624 = 126317^2 + 99568^2 .

It is a cyclic number.

It is not a de Polignac number, because 25869771113 - 2³⁰ = 24796029289 is a prime.

It is not a weakly prime, because it can be changed into another prime (25869771133) 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, 12934885556 + 12934885557.

It is an arithmetic number, because the mean of its divisors is an integer number (12934885557).

Almost surely, 2^25869771113 is an apocalyptic number.

It is an amenable number.

25869771113 is a deficient number, since it is larger than the sum of its proper divisors (1).

25869771113 is an equidigital number, since it uses as much as digits as its factorization.

25869771113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 50.

The spelling of 25869771113 in words is "twenty-five billion, eight hundred sixty-nine million, seven hundred seventy-one thousand, one hundred thirteen".