26659289113 has 2 divisors, whose sum is σ = 26659289114. Its totient is φ = 26659289112.

The previous prime is 26659289051. The next prime is 26659289131. The reversal of 26659289113 is 31198295662.

Together with next prime (26659289131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25498660489 + 1160628624 = 159683^2 + 34068^2 .

It is a cyclic number.

It is not a de Polignac number, because 26659289113 - 2¹⁷ = 26659158041 is a prime.

It is not a weakly prime, because it can be changed into another prime (26659289183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13329644556 + 13329644557.

It is an arithmetic number, because the mean of its divisors is an integer number (13329644557).

Almost surely, 2^26659289113 is an apocalyptic number.

It is an amenable number.

26659289113 is a deficient number, since it is larger than the sum of its proper divisors (1).

26659289113 is an equidigital number, since it uses as much as digits as its factorization.

26659289113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 52.

The spelling of 26659289113 in words is "twenty-six billion, six hundred fifty-nine million, two hundred eighty-nine thousand, one hundred thirteen".