26804400016789 has 8 divisors (see below), whose sum is σ = 27529194540960. Its totient is φ = 26079623981136.

The previous prime is 26804400016783. The next prime is 26804400016817. The reversal of 26804400016789 is 98761000440862.

It is a happy number.

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 26804400016789 - 2⁷ = 26804400016661 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 (26804400016783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1657999 + ... + 7507180.

It is an arithmetic number, because the mean of its divisors is an integer number (3441149317620).

Almost surely, 2^{26804400016789} is an apocalyptic number.

It is an amenable number.

26804400016789 is a deficient number, since it is larger than the sum of its proper divisors (724794524171).

26804400016789 is an equidigital number, since it uses as much as digits as its factorization.

26804400016789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9244259.

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 26804400016789 in words is "twenty-six trillion, eight hundred four billion, four hundred million, sixteen thousand, seven hundred eighty-nine".