193516421796324 has 81 divisors (see below), whose sum is σ = 537681442871209. Its totient is φ = 58641061717920.

The previous prime is 193516421796317. The next prime is 193516421796443. The reversal of 193516421796324 is 423697124615391.

The square root of 193516421796324 is 13911018.

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

193516421796324 is a `hidden beast` number, since 1 + 9 + 3 + 5 + 1 + 6 + 4 + 217 + 96 + 324 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23522597000100 + 169993824796224 = 4850010^2 + 13038168^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 918021802 + ... + 918232574.

Almost surely, 2^{193516421796324} is an apocalyptic number.

193516421796324 is the 13911018-th square number.

It is an amenable number.

193516421796324 is an abundant number, since it is smaller than the sum of its proper divisors (344165021074885).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

193516421796324 is an frugal number, since it uses more digits than its factorization.

193516421796324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421578 (or 210789 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The spelling of 193516421796324 in words is "one hundred ninety-three trillion, five hundred sixteen billion, four hundred twenty-one million, seven hundred ninety-six thousand, three hundred twenty-four".