26906631738853 has 2 divisors, whose sum is σ = 26906631738854. Its totient is φ = 26906631738852.

The previous prime is 26906631738799. The next prime is 26906631738919. The reversal of 26906631738853 is 35883713660962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25212620161089 + 1694011577764 = 5021217^2 + 1301542^2 .

It is a cyclic number.

It is not a de Polignac number, because 26906631738853 - 2¹⁷ = 26906631607781 is a prime.

It is a super-2 number, since 2×26906631738853² (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 (26906631738053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13453315869426 + 13453315869427.

It is an arithmetic number, because the mean of its divisors is an integer number (13453315869427).

Almost surely, 2^{26906631738853} is an apocalyptic number.

It is an amenable number.

26906631738853 is a deficient number, since it is larger than the sum of its proper divisors (1).

26906631738853 is an equidigital number, since it uses as much as digits as its factorization.

26906631738853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235146240, while the sum is 67.

The spelling of 26906631738853 in words is "twenty-six trillion, nine hundred six billion, six hundred thirty-one million, seven hundred thirty-eight thousand, eight hundred fifty-three".