26440916351249 has 2 divisors, whose sum is σ = 26440916351250. Its totient is φ = 26440916351248.

The previous prime is 26440916351219. The next prime is 26440916351261. The reversal of 26440916351249 is 94215361904462.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25820697099649 + 620219251600 = 5081407^2 + 787540^2 .

It is a cyclic number.

It is not a de Polignac number, because 26440916351249 - 2⁴⁰ = 25341404723473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26440916351194 and 26440916351203.

It is not a weakly prime, because it can be changed into another prime (26440916351219) 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, 13220458175624 + 13220458175625.

It is an arithmetic number, because the mean of its divisors is an integer number (13220458175625).

Almost surely, 2^{26440916351249} is an apocalyptic number.

It is an amenable number.

26440916351249 is a deficient number, since it is larger than the sum of its proper divisors (1).

26440916351249 is an equidigital number, since it uses as much as digits as its factorization.

26440916351249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11197440, while the sum is 56.

The spelling of 26440916351249 in words is "twenty-six trillion, four hundred forty billion, nine hundred sixteen million, three hundred fifty-one thousand, two hundred forty-nine".