28606665832 has 16 divisors (see below), whose sum is σ = 55367740800. Its totient is φ = 13841934960.

The previous prime is 28606665827. The next prime is 28606665859. The reversal of 28606665832 is 23856660682.

It is a self number, because there is not a number n which added to its sum of digits gives 28606665832.

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, 57674482 + ... + 57674977.

It is an arithmetic number, because the mean of its divisors is an integer number (3460483800).

Almost surely, 2^28606665832 is an apocalyptic number.

It is an amenable number.

28606665832 is a deficient number, since it is larger than the sum of its proper divisors (26761074968).

28606665832 is a wasteful number, since it uses less digits than its factorization.

28606665832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115349496 (or 115349492 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 28606665832 in words is "twenty-eight billion, six hundred six million, six hundred sixty-five thousand, eight hundred thirty-two".