28360566777 has 8 divisors (see below), whose sum is σ = 37815166816. Its totient is φ = 18906505632.

The previous prime is 28360566719. The next prime is 28360566779. The reversal of 28360566777 is 77766506382.

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

It is not a de Polignac number, because 28360566777 - 2⁶ = 28360566713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28360566779) 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 7 ways as a sum of consecutive naturals, for example, 10413 + ... + 238389.

It is an arithmetic number, because the mean of its divisors is an integer number (4726895852).

Almost surely, 2^28360566777 is an apocalyptic number.

It is an amenable number.

28360566777 is a deficient number, since it is larger than the sum of its proper divisors (9454600039).

28360566777 is a wasteful number, since it uses less digits than its factorization.

28360566777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269447.

The product of its (nonzero) digits is 17781120, while the sum is 57.

The spelling of 28360566777 in words is "twenty-eight billion, three hundred sixty million, five hundred sixty-six thousand, seven hundred seventy-seven".