19454112484 has 9 divisors (see below), whose sum is σ = 34045185027. Its totient is φ = 9726916764.

The previous prime is 19454112479. The next prime is 19454112487. The reversal of 19454112484 is 48421145491.

The square root of 19454112484 is 139478.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19454112484.

It is not an unprimeable number, because it can be changed into a prime (19454112487) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 244087 + ... + 313825.

Almost surely, 2^19454112484 is an apocalyptic number.

19454112484 is the 139478-th square number.

It is an amenable number.

19454112484 is a deficient number, since it is larger than the sum of its proper divisors (14591072543).

19454112484 is an frugal number, since it uses more digits than its factorization.

19454112484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139482 (or 69741 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

It can be divided in two parts, 194541 and 12484, that added together give a square (207025 = 455²).

The spelling of 19454112484 in words is "nineteen billion, four hundred fifty-four million, one hundred twelve thousand, four hundred eighty-four".