19448960544 has 480 divisors, whose sum is σ = 65214825984. Its totient is φ = 5643509760.

The previous prime is 19448960543. The next prime is 19448960561. The reversal of 19448960544 is 44506984491.

19448960544 is a `hidden beast` number, since 1 + 9 + 4 + 4 + 8 + 96 + 0 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (19448960543) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 44916552 + ... + 44916984.

Almost surely, 2^19448960544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19448960544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32607412992).

19448960544 is an abundant number, since it is smaller than the sum of its proper divisors (45765865440).

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

19448960544 is a wasteful number, since it uses less digits than its factorization.

19448960544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 19448960544 in words is "nineteen billion, four hundred forty-eight million, nine hundred sixty thousand, five hundred forty-four".