28057177852177 has 4 divisors (see below), whose sum is σ = 28113404662000. Its totient is φ = 28000951042356.

The previous prime is 28057177852163. The next prime is 28057177852241. The reversal of 28057177852177 is 77125877175082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28057177852177 - 2¹¹ = 28057177850129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28057177882177) by changing a digit.

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, 28113404163 + ... + 28113405160.

It is an arithmetic number, because the mean of its divisors is an integer number (7028351165500).

Almost surely, 2^{28057177852177} is an apocalyptic number.

It is an amenable number.

28057177852177 is a deficient number, since it is larger than the sum of its proper divisors (56226809823).

28057177852177 is an equidigital number, since it uses as much as digits as its factorization.

28057177852177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56226809822.

The product of its (nonzero) digits is 107564800, while the sum is 67.

The spelling of 28057177852177 in words is "twenty-eight trillion, fifty-seven billion, one hundred seventy-seven million, eight hundred fifty-two thousand, one hundred seventy-seven".