26919066833 has 4 divisors (see below), whose sum is σ = 26938674228. Its totient is φ = 26899459440.

The previous prime is 26919066817. The next prime is 26919066847. The reversal of 26919066833 is 33866091962.

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 22895321344 + 4023745489 = 151312^2 + 63433^2 .

It is a cyclic number.

It is not a de Polignac number, because 26919066833 - 2⁴ = 26919066817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26919066803) 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, 9801638 + ... + 9804383.

It is an arithmetic number, because the mean of its divisors is an integer number (6734668557).

Almost surely, 2^26919066833 is an apocalyptic number.

It is an amenable number.

26919066833 is a deficient number, since it is larger than the sum of its proper divisors (19607395).

26919066833 is a wasteful number, since it uses less digits than its factorization.

26919066833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19607394.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The spelling of 26919066833 in words is "twenty-six billion, nine hundred nineteen million, sixty-six thousand, eight hundred thirty-three".