28206402659 has 8 divisors (see below), whose sum is σ = 30228249120. Its totient is φ = 26250846336.

The previous prime is 28206402649. The next prime is 28206402689. The reversal of 28206402659 is 95620460282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28206402659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28206402629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16571654 + ... + 16573355.

It is an arithmetic number, because the mean of its divisors is an integer number (3778531140).

Almost surely, 2^28206402659 is an apocalyptic number.

28206402659 is a deficient number, since it is larger than the sum of its proper divisors (2021846461).

28206402659 is a wasteful number, since it uses less digits than its factorization.

28206402659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33145069.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 28206402659 in words is "twenty-eight billion, two hundred six million, four hundred two thousand, six hundred fifty-nine".