26601939017 has 2 divisors, whose sum is σ = 26601939018. Its totient is φ = 26601939016.

The previous prime is 26601939011. The next prime is 26601939019. The reversal of 26601939017 is 71093910662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26001885001 + 600054016 = 161251^2 + 24496^2 .

It is a cyclic number.

It is not a de Polignac number, because 26601939017 - 2⁸ = 26601938761 is a prime.

Together with 26601939019, 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 (26601939011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13300969508 + 13300969509.

It is an arithmetic number, because the mean of its divisors is an integer number (13300969509).

Almost surely, 2^26601939017 is an apocalyptic number.

It is an amenable number.

26601939017 is a deficient number, since it is larger than the sum of its proper divisors (1).

26601939017 is an equidigital number, since it uses as much as digits as its factorization.

26601939017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 26601939017 in words is "twenty-six billion, six hundred one million, nine hundred thirty-nine thousand, seventeen".