19134843000 has 1536 divisors, whose sum is σ = 86046105600. Its totient is φ = 3483648000.

The previous prime is 19134842971. The next prime is 19134843023. The reversal of 19134843000 is 34843191.

It is a super-2 number, since 2×19134843000² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 617252985 + ... + 617253015.

It is an arithmetic number, because the mean of its divisors is an integer number (56019600).

Almost surely, 2^19134843000 is an apocalyptic number.

19134843000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19134843000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43023052800).

19134843000 is an abundant number, since it is smaller than the sum of its proper divisors (66911262600).

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

19134843000 is a wasteful number, since it uses less digits than its factorization.

19134843000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 19134843000 in words is "nineteen billion, one hundred thirty-four million, eight hundred forty-three thousand".