28002808005 has 8 divisors (see below), whose sum is σ = 44804492832. Its totient is φ = 14934830928.

The previous prime is 28002808003. The next prime is 28002808027. The reversal of 28002808005 is 50080820082.

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

It is not a de Polignac number, because 28002808005 - 2¹ = 28002808003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28002808003) 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, 933426919 + ... + 933426948.

It is an arithmetic number, because the mean of its divisors is an integer number (5600561604).

Almost surely, 2^28002808005 is an apocalyptic number.

It is an amenable number.

28002808005 is a deficient number, since it is larger than the sum of its proper divisors (16801684827).

28002808005 is a wasteful number, since it uses less digits than its factorization.

28002808005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866853875.

The product of its (nonzero) digits is 10240, while the sum is 33.

The spelling of 28002808005 in words is "twenty-eight billion, two million, eight hundred eight thousand, five".