19672458784 has 72 divisors (see below), whose sum is σ = 42854361984. Its totient is φ = 8882544000.

The previous prime is 19672458779. The next prime is 19672458797. The reversal of 19672458784 is 48785427691.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 567849 + ... + 601495.

It is an arithmetic number, because the mean of its divisors is an integer number (595199472).

Almost surely, 2^19672458784 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 19672458784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21427180992).

19672458784 is an abundant number, since it is smaller than the sum of its proper divisors (23181903200).

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

19672458784 is a wasteful number, since it uses less digits than its factorization.

19672458784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33830 (or 33811 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 61.

The spelling of 19672458784 in words is "nineteen billion, six hundred seventy-two million, four hundred fifty-eight thousand, seven hundred eighty-four".