199044468736 has 39 divisors (see below), whose sum is σ = 398097450283. Its totient is φ = 99507957760.

The previous prime is 199044468677. The next prime is 199044468743. The reversal of 199044468736 is 637864440991.

The square root of 199044468736 is 446144.

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

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 2 ways as a sum of consecutive naturals, for example, 28549731 + ... + 28556701.

Almost surely, 2^199044468736 is an apocalyptic number.

199044468736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

199044468736 is the 446144-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199044468736

199044468736 is an abundant number, since it is smaller than the sum of its proper divisors (199052981547).

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

199044468736 is an frugal number, since it uses more digits than its factorization.

199044468736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13966 (or 6973 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 61.

The spelling of 199044468736 in words is "one hundred ninety-nine billion, forty-four million, four hundred sixty-eight thousand, seven hundred thirty-six".