28272808239 has 64 divisors (see below), whose sum is σ = 43762529664. Its totient is φ = 16080961536.

The previous prime is 28272808211. The next prime is 28272808243. The reversal of 28272808239 is 93280827282.

It is not a de Polignac number, because 28272808239 - 2⁹ = 28272807727 is a prime.

It is a super-2 number, since 2×28272808239² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 28272808191 and 28272808200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28272800239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12437407 + ... + 12439679.

It is an arithmetic number, because the mean of its divisors is an integer number (683789526).

Almost surely, 2^28272808239 is an apocalyptic number.

28272808239 is a deficient number, since it is larger than the sum of its proper divisors (15489721425).

28272808239 is a wasteful number, since it uses less digits than its factorization.

28272808239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 28272808239 in words is "twenty-eight billion, two hundred seventy-two million, eight hundred eight thousand, two hundred thirty-nine".