19249843104 has 240 divisors, whose sum is σ = 60180962688. Its totient is φ = 6015264768.

The previous prime is 19249843061. The next prime is 19249843163. The reversal of 19249843104 is 40134894291.

19249843104 is a `hidden beast` number, since 19 + 2 + 498 + 43 + 104 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 19249843104.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13526937 + ... + 13528359.

Almost surely, 2^19249843104 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 19249843104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30090481344).

19249843104 is an abundant number, since it is smaller than the sum of its proper divisors (40931119584).

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

19249843104 is a wasteful number, since it uses less digits than its factorization.

19249843104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769 (or 1752 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 19249843104 in words is "nineteen billion, two hundred forty-nine million, eight hundred forty-three thousand, one hundred four".