19503144960 has 448 divisors, whose sum is σ = 69689350080. Its totient is φ = 4624220160.

The previous prime is 19503144953. The next prime is 19503144977. The reversal of 19503144960 is 6944130591.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46325550 + ... + 46325970.

It is an arithmetic number, because the mean of its divisors is an integer number (155556585).

Almost surely, 2^19503144960 is an apocalyptic number.

19503144960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19503144960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34844675040).

19503144960 is an abundant number, since it is smaller than the sum of its proper divisors (50186205120).

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

19503144960 is a wasteful number, since it uses less digits than its factorization.

19503144960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 19503144960 in words is "nineteen billion, five hundred three million, one hundred forty-four thousand, nine hundred sixty".