28088684404 has 24 divisors (see below), whose sum is σ = 55955325888. Its totient is φ = 12212471040.

The previous prime is 28088684389. The next prime is 28088684413. The reversal of 28088684404 is 40448688082.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13876797 + ... + 13878820.

It is an arithmetic number, because the mean of its divisors is an integer number (2331471912).

Almost surely, 2^28088684404 is an apocalyptic number.

It is an amenable number.

28088684404 is a deficient number, since it is larger than the sum of its proper divisors (27866641484).

28088684404 is a wasteful number, since it uses less digits than its factorization.

28088684404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27755655 (or 27755653 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 52.

The spelling of 28088684404 in words is "twenty-eight billion, eighty-eight million, six hundred eighty-four thousand, four hundred four".