27820143128 has 16 divisors (see below), whose sum is σ = 52164567000. Its totient is φ = 13909591936.

The previous prime is 27820143107. The next prime is 27820143151. The reversal of 27820143128 is 82134102872.

It is a junction number, because it is equal to n+sod(n) for n = 27820143091 and 27820143100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357728 + ... + 428496.

Almost surely, 2^27820143128 is an apocalyptic number.

It is an amenable number.

27820143128 is a deficient number, since it is larger than the sum of its proper divisors (24344423872).

27820143128 is a wasteful number, since it uses less digits than its factorization.

27820143128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119914 (or 119910 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 27820143128 in words is "twenty-seven billion, eight hundred twenty million, one hundred forty-three thousand, one hundred twenty-eight".