28889466671 has 16 divisors (see below), whose sum is σ = 31317197184. Its totient is φ = 26491607904.

The previous prime is 28889466667. The next prime is 28889466673. The reversal of 28889466671 is 17666498882.

It is a cyclic number.

It is not a de Polignac number, because 28889466671 - 2² = 28889466667 is a prime.

It is a super-3 number, since 3×28889466671³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28889466598 and 28889466607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28889466673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1367636 + ... + 1388598.

It is an arithmetic number, because the mean of its divisors is an integer number (1957324824).

Almost surely, 2^28889466671 is an apocalyptic number.

28889466671 is a deficient number, since it is larger than the sum of its proper divisors (2427730513).

28889466671 is a wasteful number, since it uses less digits than its factorization.

28889466671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21670.

The product of its digits is 55738368, while the sum is 65.

The spelling of 28889466671 in words is "twenty-eight billion, eight hundred eighty-nine million, four hundred sixty-six thousand, six hundred seventy-one".