199604326441 has 9 divisors (see below), whose sum is σ = 216145885431. Its totient is φ = 184244786232.

The previous prime is 199604326429. The next prime is 199604326469. The reversal of 199604326441 is 144623406991.

The square root of 199604326441 is 446771.

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., 29527267225 + 170077059216 = 171835^2 + 412404^2 .

It is not a de Polignac number, because 199604326441 - 2²¹ = 199602229289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199604326421) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 5790840 + ... + 5825206.

Almost surely, 2^199604326441 is an apocalyptic number.

199604326441 is the 446771-st square number.

199604326441 is the 223386-th centered octagonal number.

It is an amenable number.

199604326441 is a deficient number, since it is larger than the sum of its proper divisors (16541558990).

199604326441 is an frugal number, since it uses more digits than its factorization.

199604326441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68760 (or 34380 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 49.

Multiplying 199604326441 by its sum of digits (49), we get a square (9780611995609 = 3127397²).

The spelling of 199604326441 in words is "one hundred ninety-nine billion, six hundred four million, three hundred twenty-six thousand, four hundred forty-one".