28838178609 has 8 divisors (see below), whose sum is σ = 38475262560. Its totient is φ = 19213273536.

The previous prime is 28838178601. The next prime is 28838178641. The reversal of 28838178609 is 90687183882.

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

It is not a de Polignac number, because 28838178609 - 2³ = 28838178601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28838178601) 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, 3039192 + ... + 3048665.

It is an arithmetic number, because the mean of its divisors is an integer number (4809407820).

Almost surely, 2^28838178609 is an apocalyptic number.

It is an amenable number.

28838178609 is a deficient number, since it is larger than the sum of its proper divisors (9637083951).

28838178609 is a wasteful number, since it uses less digits than its factorization.

28838178609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6089439.

The product of its (nonzero) digits is 9289728, while the sum is 60.

The spelling of 28838178609 in words is "twenty-eight billion, eight hundred thirty-eight million, one hundred seventy-eight thousand, six hundred nine".