26318713449 has 16 divisors (see below), whose sum is σ = 40923171200. Its totient is φ = 15039264240.

The previous prime is 26318713441. The next prime is 26318713453. The reversal of 26318713449 is 94431781362.

It is not a de Polignac number, because 26318713449 - 2³ = 26318713441 is a prime.

It is a super-2 number, since 2×26318713449² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26318713398 and 26318713407.

It is not an unprimeable number, because it can be changed into a prime (26318713441) 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 in 15 ways as a sum of consecutive naturals, for example, 12787462 + ... + 12789519.

It is an arithmetic number, because the mean of its divisors is an integer number (2557698200).

Almost surely, 2^26318713449 is an apocalyptic number.

It is an amenable number.

26318713449 is a deficient number, since it is larger than the sum of its proper divisors (14604457751).

26318713449 is an equidigital number, since it uses as much as digits as its factorization.

26318713449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25577005 (or 25576991 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The spelling of 26318713449 in words is "twenty-six billion, three hundred eighteen million, seven hundred thirteen thousand, four hundred forty-nine".