26018849 has 2 divisors, whose sum is σ = 26018850. Its totient is φ = 26018848.

The previous prime is 26018843. The next prime is 26018851. The reversal of 26018849 is 94881062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25150225 + 868624 = 5015^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 26018849 - 2⁴ = 26018833 is a prime.

Together with 26018851, 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 (26018843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13009424 + 13009425.

It is an arithmetic number, because the mean of its divisors is an integer number (13009425).

Almost surely, 2^26018849 is an apocalyptic number.

It is an amenable number.

26018849 is a deficient number, since it is larger than the sum of its proper divisors (1).

26018849 is an equidigital number, since it uses as much as digits as its factorization.

26018849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 26018849 is about 5100.8674752438. The cubic root of 26018849 is about 296.3211794047.

The spelling of 26018849 in words is "twenty-six million, eighteen thousand, eight hundred forty-nine".