26816853002669 has 2 divisors, whose sum is σ = 26816853002670. Its totient is φ = 26816853002668.

The previous prime is 26816853002609. The next prime is 26816853002717. The reversal of 26816853002669 is 96620035861862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25817678832100 + 999174170569 = 5081110^2 + 999587^2 .

It is a cyclic number.

It is not a de Polignac number, because 26816853002669 - 2²⁰ = 26816851954093 is a prime.

It is a super-2 number, since 2×26816853002669² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26816853002609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13408426501334 + 13408426501335.

It is an arithmetic number, because the mean of its divisors is an integer number (13408426501335).

Almost surely, 2^{26816853002669} is an apocalyptic number.

It is an amenable number.

26816853002669 is a deficient number, since it is larger than the sum of its proper divisors (1).

26816853002669 is an equidigital number, since it uses as much as digits as its factorization.

26816853002669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44789760, while the sum is 62.

The spelling of 26816853002669 in words is "twenty-six trillion, eight hundred sixteen billion, eight hundred fifty-three million, two thousand, six hundred sixty-nine".