26245105349 has 2 divisors, whose sum is σ = 26245105350. Its totient is φ = 26245105348.

The previous prime is 26245105339. The next prime is 26245105379. The reversal of 26245105349 is 94350154262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16950217249 + 9294888100 = 130193^2 + 96410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26245105349 is a prime.

It is a super-3 number, since 3×26245105349³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26245105309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13122552674 + 13122552675.

It is an arithmetic number, because the mean of its divisors is an integer number (13122552675).

Almost surely, 2^26245105349 is an apocalyptic number.

It is an amenable number.

26245105349 is a deficient number, since it is larger than the sum of its proper divisors (1).

26245105349 is an equidigital number, since it uses as much as digits as its factorization.

26245105349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 26245105349 in words is "twenty-six billion, two hundred forty-five million, one hundred five thousand, three hundred forty-nine".