193631681296 has 45 divisors (see below), whose sum is σ = 392263948839. Its totient is φ = 92587094688.

The previous prime is 193631681291. The next prime is 193631681357. The reversal of 193631681296 is 692186136391.

The square root of 193631681296 is 440036.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193631681291) 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, 40480921 + ... + 40485703.

Almost surely, 2^193631681296 is an apocalyptic number.

193631681296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

193631681296 is the 440036-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 193631681296

193631681296 is an abundant number, since it is smaller than the sum of its proper divisors (198632267543).

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

193631681296 is an frugal number, since it uses more digits than its factorization.

193631681296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9620 (or 4808 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 55.

The spelling of 193631681296 in words is "one hundred ninety-three billion, six hundred thirty-one million, six hundred eighty-one thousand, two hundred ninety-six".