28693276841 has 4 divisors (see below), whose sum is σ = 29015673300. Its totient is φ = 28370880384.

The previous prime is 28693276819. The next prime is 28693276867. The reversal of 28693276841 is 14867239682.

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 10603026841 + 18090250000 = 102971^2 + 134500^2 .

It is a cyclic number.

It is not a de Polignac number, because 28693276841 - 2²² = 28689082537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28693270841) 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, 161198096 + ... + 161198273.

It is an arithmetic number, because the mean of its divisors is an integer number (7253918325).

Almost surely, 2^28693276841 is an apocalyptic number.

It is an amenable number.

28693276841 is a deficient number, since it is larger than the sum of its proper divisors (322396459).

28693276841 is an equidigital number, since it uses as much as digits as its factorization.

28693276841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322396458.

The product of its digits is 6967296, while the sum is 56.

The spelling of 28693276841 in words is "twenty-eight billion, six hundred ninety-three million, two hundred seventy-six thousand, eight hundred forty-one".