28968398186 has 16 divisors (see below), whose sum is σ = 53480120064. Its totient is φ = 11460025584.

The previous prime is 28968398183. The next prime is 28968398201. The reversal of 28968398186 is 68189386982.

It is not an unprimeable number, because it can be changed into a prime (28968398183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79583330 + ... + 79583693.

It is an arithmetic number, because the mean of its divisors is an integer number (3342507504).

Almost surely, 2^28968398186 is an apocalyptic number.

28968398186 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28968398186 is a deficient number, since it is larger than the sum of its proper divisors (24511721878).

28968398186 is a wasteful number, since it uses less digits than its factorization.

28968398186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159167045.

The product of its digits is 71663616, while the sum is 68.

The spelling of 28968398186 in words is "twenty-eight billion, nine hundred sixty-eight million, three hundred ninety-eight thousand, one hundred eighty-six".