28606218311 has 8 divisors (see below), whose sum is σ = 31322797200. Its totient is φ = 25908975040.

The previous prime is 28606218253. The next prime is 28606218317. The reversal of 28606218311 is 11381260682.

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-28606218311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28606218317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4830806 + ... + 4836723.

It is an arithmetic number, because the mean of its divisors is an integer number (3915349650).

Almost surely, 2^28606218311 is an apocalyptic number.

28606218311 is a deficient number, since it is larger than the sum of its proper divisors (2716578889).

28606218311 is a wasteful number, since it uses less digits than its factorization.

28606218311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9667809.

The product of its (nonzero) digits is 27648, while the sum is 38.

Adding to 28606218311 its reverse (11381260682), we get a palindrome (39987478993).

The spelling of 28606218311 in words is "twenty-eight billion, six hundred six million, two hundred eighteen thousand, three hundred eleven".