28666064467683 has 6 divisors (see below), whose sum is σ = 41406537564444. Its totient is φ = 19110709645116.

The previous prime is 28666064467681. The next prime is 28666064467721. The reversal of 28666064467683 is 38676446066682.

It is not a de Polignac number, because 28666064467683 - 2¹ = 28666064467681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28666064467681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1592559137085 + ... + 1592559137102.

It is an arithmetic number, because the mean of its divisors is an integer number (6901089594074).

Almost surely, 2^{28666064467683} is an apocalyptic number.

28666064467683 is a deficient number, since it is larger than the sum of its proper divisors (12740473096761).

28666064467683 is a wasteful number, since it uses less digits than its factorization.

28666064467683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185118274193 (or 3185118274190 counting only the distinct ones).

The product of its (nonzero) digits is 2006581248, while the sum is 72.

The spelling of 28666064467683 in words is "twenty-eight trillion, six hundred sixty-six billion, sixty-four million, four hundred sixty-seven thousand, six hundred eighty-three".