28127155704768 has 56 divisors (see below), whose sum is σ = 82688629044560. Its totient is φ = 9375718567680.

The previous prime is 28127155704751. The next prime is 28127155704827. The reversal of 28127155704768 is 86740755172182.

28127155704768 is a `hidden beast` number, since 2 + 8 + 1 + 2 + 7 + 1 + 557 + 0 + 4 + 76 + 8 = 666.

It is a super-2 number, since 2×28127155704768² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8138642863 + ... + 8138646318.

It is an arithmetic number, because the mean of its divisors is an integer number (1476582661510).

Almost surely, 2^{28127155704768} is an apocalyptic number.

It is an amenable number.

28127155704768 is an abundant number, since it is smaller than the sum of its proper divisors (54561473339792).

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

28127155704768 is a wasteful number, since it uses less digits than its factorization.

28127155704768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16277289202 (or 16277289186 counting only the distinct ones).

The product of its (nonzero) digits is 52684800, while the sum is 63.

The spelling of 28127155704768 in words is "twenty-eight trillion, one hundred twenty-seven billion, one hundred fifty-five million, seven hundred four thousand, seven hundred sixty-eight".