26909115425 has 6 divisors (see below), whose sum is σ = 33367303158. Its totient is φ = 21527292320.

The previous prime is 26909115413. The next prime is 26909115433. The reversal of 26909115425 is 52451190962.

It can be written as a sum of positive squares in 3 ways, for example, as 10163344 + 26898952081 = 3188^2 + 164009^2 .

It is not a de Polignac number, because 26909115425 - 2⁶ = 26909115361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 538182284 + ... + 538182333.

It is an arithmetic number, because the mean of its divisors is an integer number (5561217193).

Almost surely, 2^26909115425 is an apocalyptic number.

26909115425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26909115425 is a deficient number, since it is larger than the sum of its proper divisors (6458187733).

26909115425 is a wasteful number, since it uses less digits than its factorization.

26909115425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076364627 (or 1076364622 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 26909115425 in words is "twenty-six billion, nine hundred nine million, one hundred fifteen thousand, four hundred twenty-five".