28771806067 has 16 divisors (see below), whose sum is σ = 29782368000. Its totient is φ = 27777708000.

The previous prime is 28771806031. The next prime is 28771806101. The reversal of 28771806067 is 76060817782.

It is a cyclic number.

It is not a de Polignac number, because 28771806067 - 2¹⁵ = 28771773299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28771806667) 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, 2735184 + ... + 2745682.

It is an arithmetic number, because the mean of its divisors is an integer number (1861398000).

Almost surely, 2^28771806067 is an apocalyptic number.

28771806067 is a deficient number, since it is larger than the sum of its proper divisors (1010561933).

28771806067 is a wasteful number, since it uses less digits than its factorization.

28771806067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11274.

The product of its (nonzero) digits is 1580544, while the sum is 52.

The spelling of 28771806067 in words is "twenty-eight billion, seven hundred seventy-one million, eight hundred six thousand, sixty-seven".