28561166716386 has 8 divisors (see below), whose sum is σ = 57122333432784. Its totient is φ = 9520388905460.

The previous prime is 28561166716241. The next prime is 28561166716427. The reversal of 28561166716386 is 68361766116582.

It is a sphenic number, since it is the product of 3 distinct primes.

28561166716386 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2380097226360 + ... + 2380097226371.

It is an arithmetic number, because the mean of its divisors is an integer number (7140291679098).

Almost surely, 2^{28561166716386} is an apocalyptic number.

28561166716386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28561166716386 is a wasteful number, since it uses less digits than its factorization.

28561166716386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760194452736.

The product of its digits is 104509440, while the sum is 66.

The spelling of 28561166716386 in words is "twenty-eight trillion, five hundred sixty-one billion, one hundred sixty-six million, seven hundred sixteen thousand, three hundred eighty-six".