26076656321 has 2 divisors, whose sum is σ = 26076656322. Its totient is φ = 26076656320.

The previous prime is 26076656273. The next prime is 26076656323. The reversal of 26076656321 is 12365667062.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18426705025 + 7649951296 = 135745^2 + 87464^2 .

It is a cyclic number.

It is not a de Polignac number, because 26076656321 - 2⁶ = 26076656257 is a prime.

Together with 26076656323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26076656323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13038328160 + 13038328161.

It is an arithmetic number, because the mean of its divisors is an integer number (13038328161).

Almost surely, 2^26076656321 is an apocalyptic number.

It is an amenable number.

26076656321 is a deficient number, since it is larger than the sum of its proper divisors (1).

26076656321 is an equidigital number, since it uses as much as digits as its factorization.

26076656321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 26076656321 in words is "twenty-six billion, seventy-six million, six hundred fifty-six thousand, three hundred twenty-one".