26812089445 has 8 divisors (see below), whose sum is σ = 32207445144. Its totient is φ = 21427713024.

The previous prime is 26812089439. The next prime is 26812089449. The reversal of 26812089445 is 54498021862.

It can be written as a sum of positive squares in 4 ways, for example, as 1823119204 + 24988970241 = 42698^2 + 158079^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26812089445 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26812089449) 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 7 ways as a sum of consecutive naturals, for example, 2739444 + ... + 2749213.

It is an arithmetic number, because the mean of its divisors is an integer number (4025930643).

Almost surely, 2^26812089445 is an apocalyptic number.

It is an amenable number.

26812089445 is a deficient number, since it is larger than the sum of its proper divisors (5395355699).

26812089445 is an equidigital number, since it uses as much as digits as its factorization.

26812089445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5489639.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 26812089445 in words is "twenty-six billion, eight hundred twelve million, eighty-nine thousand, four hundred forty-five".