28226088884808 has 24 divisors (see below), whose sum is σ = 76445657396550. Its totient is φ = 9408696294912.

The previous prime is 28226088884759. The next prime is 28226088884813. The reversal of 28226088884808 is 80848888062282.

28226088884808 is a `hidden beast` number, since 2 + 8 + 2 + 2 + 60 + 8 + 8 + 88 + 480 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27084093160644 + 1141995724164 = 5204238^2 + 1068642^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (72), and also a Moran number because the ratio is a prime number: 392029012289 = 28226088884808 / (2 + 8 + 2 + 2 + 6 + 0 + 8 + 8 + 8 + 8 + 4 + 8 + 0 + 8).

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 5 ways as a sum of consecutive naturals, for example, 196014506073 + ... + 196014506216.

Almost surely, 2^{28226088884808} is an apocalyptic number.

It is an amenable number.

28226088884808 is an abundant number, since it is smaller than the sum of its proper divisors (48219568511742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28226088884808 is a wasteful number, since it uses less digits than its factorization.

28226088884808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392029012301 (or 392029012294 counting only the distinct ones).

The product of its (nonzero) digits is 402653184, while the sum is 72.

The spelling of 28226088884808 in words is "twenty-eight trillion, two hundred twenty-six billion, eighty-eight million, eight hundred eighty-four thousand, eight hundred eight".