21174324196 has 27 divisors (see below), whose sum is σ = 38305271907. Its totient is φ = 10241275320.

The previous prime is 21174324191. The next prime is 21174324217. The reversal of 21174324196 is 69142347112.

The square root of 21174324196 is 145514.

It is a perfect power (a square), and thus also a powerful number.

It is a super-3 number, since 3×21174324196³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21174324191) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9020695 + ... + 9023041.

Almost surely, 2^21174324196 is an apocalyptic number.

21174324196 is the 145514-th square number.

It is an amenable number.

21174324196 is a deficient number, since it is larger than the sum of its proper divisors (17130947711).

21174324196 is an frugal number, since it uses more digits than its factorization.

21174324196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760 (or 2380 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The spelling of 21174324196 in words is "twenty-one billion, one hundred seventy-four million, three hundred twenty-four thousand, one hundred ninety-six".