195981988324 has 12 divisors (see below), whose sum is σ = 342972403200. Its totient is φ = 97989873128.

The previous prime is 195981988247. The next prime is 195981988351. The reversal of 195981988324 is 423889189591.

It is a self number, because there is not a number n which added to its sum of digits gives 195981988324.

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, 207357 + ... + 659515.

It is an arithmetic number, because the mean of its divisors is an integer number (28581033600).

Almost surely, 2^195981988324 is an apocalyptic number.

It is an amenable number.

195981988324 is a deficient number, since it is larger than the sum of its proper divisors (146990414876).

195981988324 is a wasteful number, since it uses less digits than its factorization.

195981988324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560522 (or 560520 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 67.

The spelling of 195981988324 in words is "one hundred ninety-five billion, nine hundred eighty-one million, nine hundred eighty-eight thousand, three hundred twenty-four".