198524721382 has 16 divisors (see below), whose sum is σ = 320791069872. Its totient is φ = 91598997600.

The previous prime is 198524721361. The next prime is 198524721389. The reversal of 198524721382 is 283127425891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198524721389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070728 + ... + 1242379.

It is an arithmetic number, because the mean of its divisors is an integer number (20049441867).

Almost surely, 2^198524721382 is an apocalyptic number.

198524721382 is a deficient number, since it is larger than the sum of its proper divisors (122266348490).

198524721382 is a wasteful number, since it uses less digits than its factorization.

198524721382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316423.

The product of its digits is 1935360, while the sum is 52.

The spelling of 198524721382 in words is "one hundred ninety-eight billion, five hundred twenty-four million, seven hundred twenty-one thousand, three hundred eighty-two".