26714991409 has 2 divisors, whose sum is σ = 26714991410. Its totient is φ = 26714991408.

The previous prime is 26714991397. The next prime is 26714991421. The reversal of 26714991409 is 90419941762.

It is a balanced prime because it is at equal distance from previous prime (26714991397) and next prime (26714991421).

It can be written as a sum of positive squares in only one way, i.e., 20774898225 + 5940093184 = 144135^2 + 77072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26714991409 is a prime.

It is not a weakly prime, because it can be changed into another prime (26714991209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13357495704 + 13357495705.

It is an arithmetic number, because the mean of its divisors is an integer number (13357495705).

Almost surely, 2^26714991409 is an apocalyptic number.

It is an amenable number.

26714991409 is a deficient number, since it is larger than the sum of its proper divisors (1).

26714991409 is an equidigital number, since it uses as much as digits as its factorization.

26714991409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 26714991409 in words is "twenty-six billion, seven hundred fourteen million, nine hundred ninety-one thousand, four hundred nine".