193902838336 has 63 divisors (see below), whose sum is σ = 406233397209. Its totient is φ = 91817008128.

The previous prime is 193902838289. The next prime is 193902838343. The reversal of 193902838336 is 633838209391.

It is a happy number.

The square root of 193902838336 is 440344.

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

It can be written as a sum of positive squares in only one way, i.e., 21963240000 + 171939598336 = 148200^2 + 414656^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 66930840 + ... + 66933736.

Almost surely, 2^193902838336 is an apocalyptic number.

193902838336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

193902838336 is the 440344-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 193902838336

193902838336 is an abundant number, since it is smaller than the sum of its proper divisors (212330558873).

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

193902838336 is an frugal number, since it uses more digits than its factorization.

193902838336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5844 (or 2918 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 55.

The spelling of 193902838336 in words is "one hundred ninety-three billion, nine hundred two million, eight hundred thirty-eight thousand, three hundred thirty-six".