26244000289 has 8 divisors (see below), whose sum is σ = 28267105832. Its totient is φ = 24221514240.

The previous prime is 26244000281. The next prime is 26244000323. The reversal of 26244000289 is 98200044262.

It can be written as a sum of positive squares in 4 ways, for example, as 3880293264 + 22363707025 = 62292^2 + 149545^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26244000289 - 2³ = 26244000281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26244000281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64944 + ... + 238129.

It is an arithmetic number, because the mean of its divisors is an integer number (3533388229).

Almost surely, 2^26244000289 is an apocalyptic number.

26244000289 is the 86593-rd nonagonal number.

It is an amenable number.

26244000289 is a deficient number, since it is larger than the sum of its proper divisors (2023105543).

26244000289 is a wasteful number, since it uses less digits than its factorization.

26244000289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309747.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 26244000289 in words is "twenty-six billion, two hundred forty-four million, two hundred eighty-nine", and thus it is an aban number.