28265676177 has 4 divisors (see below), whose sum is σ = 37687568240. Its totient is φ = 18843784116.

The previous prime is 28265676167. The next prime is 28265676191. The reversal of 28265676177 is 77167656282.

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 not a de Polignac number, because 28265676177 - 2¹⁵ = 28265643409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28265676137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4710946027 + ... + 4710946032.

It is an arithmetic number, because the mean of its divisors is an integer number (9421892060).

Almost surely, 2^28265676177 is an apocalyptic number.

It is an amenable number.

28265676177 is a deficient number, since it is larger than the sum of its proper divisors (9421892063).

28265676177 is an equidigital number, since it uses as much as digits as its factorization.

28265676177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9421892062.

The product of its digits is 11854080, while the sum is 57.

The spelling of 28265676177 in words is "twenty-eight billion, two hundred sixty-five million, six hundred seventy-six thousand, one hundred seventy-seven".