28686354927 has 8 divisors (see below), whose sum is σ = 38346799920. Its totient is φ = 19075073280.

The previous prime is 28686354911. The next prime is 28686354941. The reversal of 28686354927 is 72945368682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28686354927 - 2⁴ = 28686354911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28686354127) 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, 12289474 + ... + 12291807.

It is an arithmetic number, because the mean of its divisors is an integer number (4793349990).

Almost surely, 2^28686354927 is an apocalyptic number.

28686354927 is a deficient number, since it is larger than the sum of its proper divisors (9660444993).

28686354927 is a wasteful number, since it uses less digits than its factorization.

28686354927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24581673.

The product of its digits is 34836480, while the sum is 60.

The spelling of 28686354927 in words is "twenty-eight billion, six hundred eighty-six million, three hundred fifty-four thousand, nine hundred twenty-seven".