108209019830 has 32 divisors (see below), whose sum is σ = 205098017760. Its totient is φ = 40991443200.

The previous prime is 108209019791. The next prime is 108209019847. The reversal of 108209019830 is 38910902801.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465530 + ... + 658130.

It is an arithmetic number, because the mean of its divisors is an integer number (6409313055).

Almost surely, 2^108209019830 is an apocalyptic number.

108209019830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108209019830 is a deficient number, since it is larger than the sum of its proper divisors (96888997930).

108209019830 is a wasteful number, since it uses less digits than its factorization.

108209019830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195584.

The product of its (nonzero) digits is 31104, while the sum is 41.

The spelling of 108209019830 in words is "one hundred eight billion, two hundred nine million, nineteen thousand, eight hundred thirty".