281827943271868 has 12 divisors (see below), whose sum is σ = 563655886543792. Its totient is φ = 120783404259360.

The previous prime is 281827943271799. The next prime is 281827943271943. The reversal of 281827943271868 is 868172349728182.

281827943271868 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 281827943271794 and 281827943271803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5032641844113 + ... + 5032641844168.

Almost surely, 2^{281827943271868} is an apocalyptic number.

281827943271868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

281827943271868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

281827943271868 is a wasteful number, since it uses less digits than its factorization.

281827943271868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10065283688292 (or 10065283688290 counting only the distinct ones).

The product of its digits is 1040449536, while the sum is 76.

The spelling of 281827943271868 in words is "two hundred eighty-one trillion, eight hundred twenty-seven billion, nine hundred forty-three million, two hundred seventy-one thousand, eight hundred sixty-eight".