28508874766 has 8 divisors (see below), whose sum is σ = 42765005304. Its totient is φ = 14253873000.

The previous prime is 28508874721. The next prime is 28508874791. The reversal of 28508874766 is 66747880582.

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

It is a congruent 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, 215940 + ... + 321943.

It is an arithmetic number, because the mean of its divisors is an integer number (5345625663).

Almost surely, 2^28508874766 is an apocalyptic number.

28508874766 is a deficient number, since it is larger than the sum of its proper divisors (14256130538).

28508874766 is a wasteful number, since it uses less digits than its factorization.

28508874766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564386.

The product of its (nonzero) digits is 36126720, while the sum is 61.

The spelling of 28508874766 in words is "twenty-eight billion, five hundred eight million, eight hundred seventy-four thousand, seven hundred sixty-six".