26868476653 has 2 divisors, whose sum is σ = 26868476654. Its totient is φ = 26868476652.

The previous prime is 26868476639. The next prime is 26868476689. The reversal of 26868476653 is 35667486862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16097773129 + 10770703524 = 126877^2 + 103782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26868476653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26868476591 and 26868476600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26868476623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13434238326 + 13434238327.

It is an arithmetic number, because the mean of its divisors is an integer number (13434238327).

Almost surely, 2^26868476653 is an apocalyptic number.

It is an amenable number.

26868476653 is a deficient number, since it is larger than the sum of its proper divisors (1).

26868476653 is an equidigital number, since it uses as much as digits as its factorization.

26868476653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69672960, while the sum is 61.

The spelling of 26868476653 in words is "twenty-six billion, eight hundred sixty-eight million, four hundred seventy-six thousand, six hundred fifty-three".