19563035152144 has 45 divisors (see below), whose sum is σ = 41662808020519. Its totient is φ = 8892200245280.

The previous prime is 19563035152079. The next prime is 19563035152147. The reversal of 19563035152144 is 44125153036591.

The square root of 19563035152144 is 4423012.

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 (19563035152147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 194562267 + ... + 194662789.

Almost surely, 2^{19563035152144} is an apocalyptic number.

19563035152144 is the 4423012-nd square number.

It is an amenable number.

19563035152144 is an abundant number, since it is smaller than the sum of its proper divisors (22099772868375).

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

19563035152144 is an frugal number, since it uses more digits than its factorization.

19563035152144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201076 (or 100536 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 49.

Multiplying 19563035152144 by its sum of digits (49), we get a square (958588722455056 = 30961084²).

The spelling of 19563035152144 in words is "nineteen trillion, five hundred sixty-three billion, thirty-five million, one hundred fifty-two thousand, one hundred forty-four".