19784368480 has 48 divisors (see below), whose sum is σ = 47177439120. Its totient is φ = 7839780352.

The previous prime is 19784368453. The next prime is 19784368489. The reversal of 19784368480 is 8486348791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19784368489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560695 + ... + 594934.

It is an arithmetic number, because the mean of its divisors is an integer number (982863315).

Almost surely, 2^19784368480 is an apocalyptic number.

19784368480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19784368480 is an abundant number, since it is smaller than the sum of its proper divisors (27393070640).

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

19784368480 is a wasteful number, since it uses less digits than its factorization.

19784368480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155751 (or 1155743 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 58.

The spelling of 19784368480 in words is "nineteen billion, seven hundred eighty-four million, three hundred sixty-eight thousand, four hundred eighty".