19031270144 has 108 divisors (see below), whose sum is σ = 40183302600. Its totient is φ = 8993943552.

The previous prime is 19031270053. The next prime is 19031270179. The reversal of 19031270144 is 44107213091.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 19031270144.

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, 12051947 + ... + 12053525.

Almost surely, 2^19031270144 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 19031270144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20091651300).

19031270144 is an abundant number, since it is smaller than the sum of its proper divisors (21152032456).

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

19031270144 is an equidigital number, since it uses as much as digits as its factorization.

19031270144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730 (or 1693 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 19031270144 in words is "nineteen billion, thirty-one million, two hundred seventy thousand, one hundred forty-four".