728228102186 has 32 divisors (see below), whose sum is σ = 1185688616448. Its totient is φ = 333451883520.

The previous prime is 728228102159. The next prime is 728228102219. The reversal of 728228102186 is 681201822827.

It is a self number, because there is not a number n which added to its sum of digits gives 728228102186.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1643891 + ... + 2039321.

It is an arithmetic number, because the mean of its divisors is an integer number (37052769264).

Almost surely, 2^728228102186 is an apocalyptic number.

728228102186 is a deficient number, since it is larger than the sum of its proper divisors (457460514262).

728228102186 is a wasteful number, since it uses less digits than its factorization.

728228102186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396006.

The product of its (nonzero) digits is 344064, while the sum is 47.

The spelling of 728228102186 in words is "seven hundred twenty-eight billion, two hundred twenty-eight million, one hundred two thousand, one hundred eighty-six".