27143128355 has 16 divisors (see below), whose sum is σ = 37984555200. Its totient is φ = 18612429696.

The previous prime is 27143128333. The next prime is 27143128417. The reversal of 27143128355 is 55382134172.

It is not a de Polignac number, because 27143128355 - 2¹² = 27143124259 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 7911734 + ... + 7915163.

It is an arithmetic number, because the mean of its divisors is an integer number (2374034700).

Almost surely, 2^27143128355 is an apocalyptic number.

27143128355 is a deficient number, since it is larger than the sum of its proper divisors (10841426845).

27143128355 is an equidigital number, since it uses as much as digits as its factorization.

27143128355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15826923 (or 15826909 counting only the distinct ones).

The product of its digits is 201600, while the sum is 41.

The spelling of 27143128355 in words is "twenty-seven billion, one hundred forty-three million, one hundred twenty-eight thousand, three hundred fifty-five".