28082470069 has 4 divisors (see below), whose sum is σ = 28181701696. Its totient is φ = 27983238444.

The previous prime is 28082470063. The next prime is 28082470093. The reversal of 28082470069 is 96007428082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28082470069 - 2⁹ = 28082469557 is a prime.

It is a super-2 number, since 2×28082470069² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28082470063) 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 3 ways as a sum of consecutive naturals, for example, 49615389 + ... + 49615954.

It is an arithmetic number, because the mean of its divisors is an integer number (7045425424).

Almost surely, 2^28082470069 is an apocalyptic number.

It is an amenable number.

28082470069 is a deficient number, since it is larger than the sum of its proper divisors (99231627).

28082470069 is an equidigital number, since it uses as much as digits as its factorization.

28082470069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99231626.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 28082470069 in words is "twenty-eight billion, eighty-two million, four hundred seventy thousand, sixty-nine".