28586943217 has 8 divisors (see below), whose sum is σ = 32692745600. Its totient is φ = 24486629184.

The previous prime is 28586943163. The next prime is 28586943223. The reversal of 28586943217 is 71234968582.

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

It is a cyclic number.

It is not a de Polignac number, because 28586943217 - 2²⁷ = 28452725489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28586943257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360917 + ... + 1381762.

It is an arithmetic number, because the mean of its divisors is an integer number (4086593200).

Almost surely, 2^28586943217 is an apocalyptic number.

28586943217 is the 97617-th hex number.

It is an amenable number.

28586943217 is a deficient number, since it is larger than the sum of its proper divisors (4105802383).

28586943217 is a wasteful number, since it uses less digits than its factorization.

28586943217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744175.

The product of its digits is 5806080, while the sum is 55.

The spelling of 28586943217 in words is "twenty-eight billion, five hundred eighty-six million, nine hundred forty-three thousand, two hundred seventeen".