26051226889 has 4 divisors (see below), whose sum is σ = 26055802180. Its totient is φ = 26046651600.

The previous prime is 26051226863. The next prime is 26051226907. The reversal of 26051226889 is 98862215062.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9975015625 + 16076211264 = 99875^2 + 126792^2 .

It is a cyclic number.

It is not a de Polignac number, because 26051226889 - 2¹¹ = 26051224841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26051226809) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2279094 + ... + 2290495.

It is an arithmetic number, because the mean of its divisors is an integer number (6513950545).

Almost surely, 2^26051226889 is an apocalyptic number.

It is an amenable number.

26051226889 is a deficient number, since it is larger than the sum of its proper divisors (4575291).

26051226889 is an equidigital number, since it uses as much as digits as its factorization.

26051226889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4575290.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 26051226889 in words is "twenty-six billion, fifty-one million, two hundred twenty-six thousand, eight hundred eighty-nine".