19743024912 has 160 divisors (see below), whose sum is σ = 56234400768. Its totient is φ = 5931214848.

The previous prime is 19743024911. The next prime is 19743024923. The reversal of 19743024912 is 21942034791.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19743024911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7373718 + ... + 7376394.

Almost surely, 2^19743024912 is an apocalyptic number.

19743024912 is a gapful number since it is divisible by the number (12) 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 19743024912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28117200384).

19743024912 is an abundant number, since it is smaller than the sum of its proper divisors (36491375856).

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

19743024912 is a wasteful number, since it uses less digits than its factorization.

19743024912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977 (or 2971 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 19743024912 in words is "nineteen billion, seven hundred forty-three million, twenty-four thousand, nine hundred twelve".