26726034679381 has 2 divisors, whose sum is σ = 26726034679382. Its totient is φ = 26726034679380.

The previous prime is 26726034679367. The next prime is 26726034679517. The reversal of 26726034679381 is 18397643062762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26695470898756 + 30563780625 = 5166766^2 + 174825^2 .

It is a cyclic number.

It is not a de Polignac number, because 26726034679381 - 2²⁹ = 26725497808469 is a prime.

It is a super-2 number, since 2×26726034679381² (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 (26726034679301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13363017339690 + 13363017339691.

It is an arithmetic number, because the mean of its divisors is an integer number (13363017339691).

Almost surely, 2^{26726034679381} is an apocalyptic number.

It is an amenable number.

26726034679381 is a deficient number, since it is larger than the sum of its proper divisors (1).

26726034679381 is an equidigital number, since it uses as much as digits as its factorization.

26726034679381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109734912, while the sum is 64.

The spelling of 26726034679381 in words is "twenty-six trillion, seven hundred twenty-six billion, thirty-four million, six hundred seventy-nine thousand, three hundred eighty-one".