28875303666 has 48 divisors (see below), whose sum is σ = 68367263328. Its totient is φ = 8735150400.

The previous prime is 28875303647. The next prime is 28875303731. The reversal of 28875303666 is 66630357882.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7995 + ... + 240446.

It is an arithmetic number, because the mean of its divisors is an integer number (1424317986).

Almost surely, 2^28875303666 is an apocalyptic number.

28875303666 is an abundant number, since it is smaller than the sum of its proper divisors (39491959662).

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

28875303666 is a wasteful number, since it uses less digits than its factorization.

28875303666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249047 (or 249044 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 28875303666 in words is "twenty-eight billion, eight hundred seventy-five million, three hundred three thousand, six hundred sixty-six".