28871040311 has 8 divisors (see below), whose sum is σ = 29816738304. Its totient is φ = 27926240760.

The previous prime is 28871040307. The next prime is 28871040403. The reversal of 28871040311 is 11304017882.

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 28871040311 - 2² = 28871040307 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 (28871046311) 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, 158981 + ... + 288126.

It is an arithmetic number, because the mean of its divisors is an integer number (3727092288).

Almost surely, 2^28871040311 is an apocalyptic number.

28871040311 is a deficient number, since it is larger than the sum of its proper divisors (945697993).

28871040311 is a wasteful number, since it uses less digits than its factorization.

28871040311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449221.

The product of its (nonzero) digits is 10752, while the sum is 35.

The spelling of 28871040311 in words is "twenty-eight billion, eight hundred seventy-one million, forty thousand, three hundred eleven".