28087678376177 has 16 divisors (see below), whose sum is σ = 33136053571584. Its totient is φ = 23298282450000.

The previous prime is 28087678376141. The next prime is 28087678376179. The reversal of 28087678376177 is 77167387678082.

It is a cyclic number.

It is not a de Polignac number, because 28087678376177 - 2³⁰ = 28086604634353 is a prime.

It is a super-2 number, since 2×28087678376177² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28087678376098 and 28087678376107.

It is not an unprimeable number, because it can be changed into a prime (28087678376179) 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 15 ways as a sum of consecutive naturals, for example, 20885402 + ... + 22189532.

It is an arithmetic number, because the mean of its divisors is an integer number (2071003348224).

Almost surely, 2^{28087678376177} is an apocalyptic number.

It is an amenable number.

28087678376177 is a deficient number, since it is larger than the sum of its proper divisors (5048375195407).

28087678376177 is a wasteful number, since it uses less digits than its factorization.

28087678376177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403420.

The product of its (nonzero) digits is 1858719744, while the sum is 77.

The spelling of 28087678376177 in words is "twenty-eight trillion, eighty-seven billion, six hundred seventy-eight million, three hundred seventy-six thousand, one hundred seventy-seven".