219281439234 has 128 divisors (see below), whose sum is σ = 539797708800. Its totient is φ = 58472409600.

The previous prime is 219281439199. The next prime is 219281439241. The reversal of 219281439234 is 432934182912.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1720542 + ... + 1843590.

It is an arithmetic number, because the mean of its divisors is an integer number (4217169600).

Almost surely, 2^219281439234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 219281439234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269898854400).

219281439234 is an abundant number, since it is smaller than the sum of its proper divisors (320516269566).

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

219281439234 is a wasteful number, since it uses less digits than its factorization.

219281439234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123176.

The product of its digits is 746496, while the sum is 48.

The spelling of 219281439234 in words is "two hundred nineteen billion, two hundred eighty-one million, four hundred thirty-nine thousand, two hundred thirty-four".