193821223982 has 8 divisors (see below), whose sum is σ = 290734476552. Its totient is φ = 96909731800.

The previous prime is 193821223979. The next prime is 193821223987. The reversal of 193821223982 is 289322128391.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×193821223982² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 193821223982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193821223987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117569 + ... + 633612.

It is an arithmetic number, because the mean of its divisors is an integer number (36341809569).

Almost surely, 2^193821223982 is an apocalyptic number.

193821223982 is a deficient number, since it is larger than the sum of its proper divisors (96913252570).

193821223982 is a wasteful number, since it uses less digits than its factorization.

193821223982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880194.

The product of its digits is 746496, while the sum is 50.

The spelling of 193821223982 in words is "one hundred ninety-three billion, eight hundred twenty-one million, two hundred twenty-three thousand, nine hundred eighty-two".