28108362199824 has 45 divisors (see below), whose sum is σ = 78664552817799. Its totient is φ = 9369432859680.

The previous prime is 28108362199817. The next prime is 28108362199847. The reversal of 28108362199824 is 42899126380182.

The square root of 28108362199824 is 5301732.

It is a perfect power (a square), and thus also a powerful number.

28108362199824 is a `hidden beast` number, since 2 + 8 + 1 + 0 + 8 + 362 + 199 + 82 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 63399879 + ... + 63841689.

Almost surely, 2^{28108362199824} is an apocalyptic number.

28108362199824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

28108362199824 is the 5301732-nd square number.

It is an amenable number.

28108362199824 is an abundant number, since it is smaller than the sum of its proper divisors (50556190617975).

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

28108362199824 is an frugal number, since it uses more digits than its factorization.

28108362199824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883636 (or 441816 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 28108362199824 in words is "twenty-eight trillion, one hundred eight billion, three hundred sixty-two million, one hundred ninety-nine thousand, eight hundred twenty-four".