19111942224 has 140 divisors (see below), whose sum is σ = 58441398400. Its totient is φ = 6035280192.

The previous prime is 19111942219. The next prime is 19111942237. The reversal of 19111942224 is 42224911191.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 27 ways as a sum of consecutive naturals, for example, 178497 + ... + 264735.

It is an arithmetic number, because the mean of its divisors is an integer number (417438560).

Almost surely, 2^19111942224 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 19111942224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29220699200).

19111942224 is an abundant number, since it is smaller than the sum of its proper divisors (39329456176).

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

19111942224 is an equidigital number, since it uses as much as digits as its factorization.

19111942224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86284 (or 86263 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The spelling of 19111942224 in words is "nineteen billion, one hundred eleven million, nine hundred forty-two thousand, two hundred twenty-four".