19434275124 has 72 divisors (see below), whose sum is σ = 49882890624. Its totient is φ = 5884560000.

The previous prime is 19434275111. The next prime is 19434275129. The reversal of 19434275124 is 42157243491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19434275129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2154624 + ... + 2163624.

Almost surely, 2^19434275124 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 19434275124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24941445312).

19434275124 is an abundant number, since it is smaller than the sum of its proper divisors (30448615500).

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

19434275124 is a wasteful number, since it uses less digits than its factorization.

19434275124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10517 (or 10504 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The spelling of 19434275124 in words is "nineteen billion, four hundred thirty-four million, two hundred seventy-five thousand, one hundred twenty-four".