28365312671 has 8 divisors (see below), whose sum is σ = 28860790320. Its totient is φ = 27872724672.

The previous prime is 28365312659. The next prime is 28365312673. The reversal of 28365312671 is 17621356382.

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 28365312671 - 2⁶ = 28365312607 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 (28365312673) 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, 702605 + ... + 741878.

It is an arithmetic number, because the mean of its divisors is an integer number (3607598790).

Almost surely, 2^28365312671 is an apocalyptic number.

28365312671 is a deficient number, since it is larger than the sum of its proper divisors (495477649).

28365312671 is a wasteful number, since it uses less digits than its factorization.

28365312671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444825.

The product of its digits is 362880, while the sum is 44.

The spelling of 28365312671 in words is "twenty-eight billion, three hundred sixty-five million, three hundred twelve thousand, six hundred seventy-one".