26794893289 has 2 divisors, whose sum is σ = 26794893290. Its totient is φ = 26794893288.

The previous prime is 26794893277. The next prime is 26794893329. The reversal of 26794893289 is 98239849762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20507672025 + 6287221264 = 143205^2 + 79292^2 .

It is a cyclic number.

It is not a de Polignac number, because 26794893289 - 2⁷ = 26794893161 is a prime.

It is not a weakly prime, because it can be changed into another prime (26794893269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13397446644 + 13397446645.

It is an arithmetic number, because the mean of its divisors is an integer number (13397446645).

Almost surely, 2^26794893289 is an apocalyptic number.

It is an amenable number.

26794893289 is a deficient number, since it is larger than the sum of its proper divisors (1).

26794893289 is an equidigital number, since it uses as much as digits as its factorization.

26794893289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94058496, while the sum is 67.

The spelling of 26794893289 in words is "twenty-six billion, seven hundred ninety-four million, eight hundred ninety-three thousand, two hundred eighty-nine".