28826008206641 has 4 divisors (see below), whose sum is σ = 29009613354612. Its totient is φ = 28642403058672.

The previous prime is 28826008206637. The next prime is 28826008206643. The reversal of 28826008206641 is 14660280062882.

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 4759723259041 + 24066284947600 = 2181679^2 + 4905740^2 .

It is a cyclic number.

It is not a de Polignac number, because 28826008206641 - 2² = 28826008206637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28826008206643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91802573750 + ... + 91802574063.

It is an arithmetic number, because the mean of its divisors is an integer number (7252403338653).

Almost surely, 2^{28826008206641} is an apocalyptic number.

It is an amenable number.

28826008206641 is a deficient number, since it is larger than the sum of its proper divisors (183605147971).

28826008206641 is a wasteful number, since it uses less digits than its factorization.

28826008206641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183605147970.

The product of its (nonzero) digits is 3538944, while the sum is 53.

The spelling of 28826008206641 in words is "twenty-eight trillion, eight hundred twenty-six billion, eight million, two hundred six thousand, six hundred forty-one".