26946143297 has 2 divisors, whose sum is σ = 26946143298. Its totient is φ = 26946143296.

The previous prime is 26946143239. The next prime is 26946143303. The reversal of 26946143297 is 79234164962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25167918736 + 1778224561 = 158644^2 + 42169^2 .

It is a cyclic number.

It is not a de Polignac number, because 26946143297 - 2¹⁰ = 26946142273 is a prime.

It is not a weakly prime, because it can be changed into another prime (26946143597) 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, 13473071648 + 13473071649.

It is an arithmetic number, because the mean of its divisors is an integer number (13473071649).

Almost surely, 2^26946143297 is an apocalyptic number.

It is an amenable number.

26946143297 is a deficient number, since it is larger than the sum of its proper divisors (1).

26946143297 is an equidigital number, since it uses as much as digits as its factorization.

26946143297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 53.

The spelling of 26946143297 in words is "twenty-six billion, nine hundred forty-six million, one hundred forty-three thousand, two hundred ninety-seven".