28633686866683 has 2 divisors, whose sum is σ = 28633686866684. Its totient is φ = 28633686866682.

The previous prime is 28633686866593. The next prime is 28633686866717. The reversal of 28633686866683 is 38666868633682.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28633686866683 is a prime.

It is not a weakly prime, because it can be changed into another prime (28633686866483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14316843433341 + 14316843433342.

It is an arithmetic number, because the mean of its divisors is an integer number (14316843433342).

Almost surely, 2^{28633686866683} is an apocalyptic number.

28633686866683 is a deficient number, since it is larger than the sum of its proper divisors (1).

28633686866683 is an equidigital number, since it uses as much as digits as its factorization.

28633686866683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10319560704, while the sum is 79.

The spelling of 28633686866683 in words is "twenty-eight trillion, six hundred thirty-three billion, six hundred eighty-six million, eight hundred sixty-six thousand, six hundred eighty-three".