28957271470827 has 64 divisors (see below), whose sum is σ = 47242983088128. Its totient is φ = 15426184320000.

The previous prime is 28957271470801. The next prime is 28957271470837. The reversal of 28957271470827 is 72807417275982.

It is not a de Polignac number, because 28957271470827 - 2¹¹ = 28957271468779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28957271470837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3518674 + ... + 8384247.

It is an arithmetic number, because the mean of its divisors is an integer number (738171610752).

Almost surely, 2^{28957271470827} is an apocalyptic number.

28957271470827 is a deficient number, since it is larger than the sum of its proper divisors (18285711617301).

28957271470827 is a wasteful number, since it uses less digits than its factorization.

28957271470827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11903100.

The product of its (nonzero) digits is 221276160, while the sum is 69.

The spelling of 28957271470827 in words is "twenty-eight trillion, nine hundred fifty-seven billion, two hundred seventy-one million, four hundred seventy thousand, eight hundred twenty-seven".