28871614289 has 8 divisors (see below), whose sum is σ = 33012095040. Its totient is φ = 24735124656.

The previous prime is 28871614283. The next prime is 28871614319. The reversal of 28871614289 is 98241617882.

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 28871614289 - 2⁴ = 28871614273 is a prime.

It is a super-2 number, since 2×28871614289² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28871614283) 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, 982259 + ... + 1011224.

It is an arithmetic number, because the mean of its divisors is an integer number (4126511880).

Almost surely, 2^28871614289 is an apocalyptic number.

It is an amenable number.

28871614289 is a deficient number, since it is larger than the sum of its proper divisors (4140480751).

28871614289 is a wasteful number, since it uses less digits than its factorization.

28871614289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995559.

The product of its digits is 3096576, while the sum is 56.

The spelling of 28871614289 in words is "twenty-eight billion, eight hundred seventy-one million, six hundred fourteen thousand, two hundred eighty-nine".